mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2023).  numerical simulation on heat transfer performance of a liquid cold plate for cooling of the electric vehicle battery.  - journal of advanced research in fluid mechanics and thermal sciences.  114-125. 

mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2023).  investigate the effect of a novel inlet header on the thermal and hydraulic performance of a liquid cold plate used for cooling the li-ion battery cell of electric vehicles.  - proceedings of the institution of mechanical engineers part d - journal of automobile engineering.  3326-3333. 

hind azeez mohammed hussein, rozli zulkifli, wan mohd faizal wan mahmood, raheem k. ajeel.  (2022).  effects of design parameters on flow fields and heat transfer characteristics in semicircle oblique finned corrugated.  - international communications in heat and mass transfer.  1-20. 

abeer adel salih, rozli zulkifli, che husna azhari.  (2022).  tensile properties of single cellulosic bamboo fiber (gigantochloa scortechinii) using response surface methodology.  - journal of natural fibers.  359-368. 

nur syahirah m.hanafi, wan aizon w.ghopa, rozli zulkifli, shahrir abdullah, zambri harun, mohd radzi abumansor.  (2022).  numerical simulation on the effectiveness of hybrid nanofluid in jet impingement cooling application.  - energy report.  764-775. 

hind azeez mohammed hussein, rozli zulkifli, wan mohd faizal bin wan mahmood, raheem k. ajeel.  (2022).  structure parameters and designs and their impact on performance of different heat exchangers: a review.  - renewable and sustainable energy reviews.  1-21. 

abdullh mansur aldosry, rozli zulkifli, wan aizon wan ghopa.  (2021).  heat transfer enhancement of liquid cooled copper plate with oblique fins for electric vehicles battery thermal management.  - world electric vehicle journal.  1-14. 

mahir faris abdullah, rozli zulkifli, hazim moria, asmaa soheil najm, zambri harun, shahrir abdullah, wan aizon wan ghopa, noor humam sulaiman.  (2021).  assessment of tio2 nanoconcentration and twin impingement jet of heat transfer enhancement-a statistical approach using response surface methodology.  - energies.  1-29. 

raheem k. ajeel, k. sopian, rozli zulkifli, saba n. fayyadh, ali kareem hilo.  (2021).  assessment and analysis of binary hybrid nanofluid impact on new configurations for curved-corrugated channel.  - advanced powder technology.  3869-3884. 

lindani koketso ncube, albert uchenna ude, enoch nifise ogunmuyiwa, rozli zulkifli, isaac nongwe beas.  (2021).  an overview of plastic waste generation and management in food packaging industries.  - recycling.  1-25. 

raheem kadhim ajeel, k. sopian, rozli zulkifli.  (2021).  thermal-hydraulic performance and design parameters in a curved-corrugated channel with l-shaped baffles and nanofluid.  - journal of energy storage.  1-24. 

raheem k. ajeel, rozli zulkifli, k. sopian, saba n. fayyadh, ahmad fazlizan , adnan ibrahim.  (2021).  numerical investigation of binary hybrid nanofluid in new configurations for curved-corrugated channel by thermal-hydraulic performance method.  - powder technology.  144-159. 

raheem k. ajeel, k. sopian, rozli zulkifli.  (2021).  a novel curved-corrugated channel model: thermal-hydraulic performance and design parameters with nanofluid.  - international communications in heat and mass transfer.  1-21. 

lindani koketso ncube, albert uchenna ude, enoch nifise ogunmuyiwa, rozli zulkifli, isaac nongwe beas.  (2020).  environmental impact of food packaging materials: a review of contemporary development from conventional plastics to polylactic acid based materials.  - materials.  1-24. 

siti atiqa al zahra mat darus, mariyam jameelah ghazali, che husna azhari, rozli zulkifli, ahmad adlie shamsuri.  (2020).  mechanical properties of gigantochloa scortechinii bamboo particle reinforced semirigid polyvinyl chloride composites.  - jurnal teknologi.  15-22. 

abeer adel salih, rozli zulkifli, che husna azhari.  (2020).  tensile properties and microstructure of single cellulosic bamboo fiber strips after alkali treatment.  - fibers.  1-10. 

mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2020).  thermal and hydraulic performance of cuo water nanofluids: a review.  - micromachines.  1-19. 

abeer adel salih, rozli zulkifli, che husna azhari.  (2020).  optimization of bamboo mesoparticle/nylon 6 composite mechanical properties using a response surface methodology.  - international journal of materials research.  204-213. 

razieh. k. haddad, rozli zulkifli, cristian maluk and zambri harun.  (2020).  experimental investigation on the influences of different horizontal fire locations on smoke temperature stratification under tunnel ceiling.  - journal of applied fluid mechanics.  1289-1298. 

abeer adel salih, rozli zulkifli, che husna azhari.  (2019).  mechanical and morphological properties of bamboo mesoparticle nylon 6 composites.  - international journal of materials research.  130-136. 

abeer adel salih, rozli zulkifli, che husna azhari.  (2019).  water absorption behaviour and its effect on the mechanical properties of gigantochloa scortechinii (buluh simantan).  - international journal of microstructure and materials properties.  184-201. 

mahir faris abdullah, rozli zulkifli, zambri harun, shahrir abdullah, wan aizon wan ghopa, asmaa soheil najm, noor humam sulaiman.  (2019).  impact of the tio2 nanosolution concentration on heat transfer enhancement of the twin impingement jet of a heated aluminum plate.  - micromachines.  1-22. 

meor syazalee, rozli zulkifli.  (2019).  effect of humidity on the mechanical properties of kenaf yarn fibre polylactic acid biocomposites.  - jurnal teknologi.  171-177. 

mahir faris abdullah, humam kareem, rozli zulkifli, zambri harun, shahrir abdullah, wan aizon w. ghopa.  (2019).  heat transfer and flow structure of multiple jet impingement mechanisms on a flat plate for turbulent flow.  - international journal of mechanical and mechatronics engineering.  141-160. 

mahir faris abdullah, rozli zulkifli, zambri harun, shahrir abdullah, wan aizon wan ghopa, ashraf amer abbas.  (2018).  heat transfer augmentation based on twin impingement jet mechanism.  - international journal of engineering & technology.  . 

majid jafarzadehghoushji, r. alebrahim, rozli zulkifli, abu bakar sulong, shahrum abdullah, che husna azhari.  (2018).  crashworthiness characteristics of natural ramie/bio-epoxy composite tubes for energy absorption application.  - iranian polymer journal.  . 

eslam r. lotfy, wan mohd. faizal wan mahmood, rozli zulkifli dan zambri harun.  (2018).  cfd simulation of automotive pollutant dispersion in high-rise building urban environment under deeply stable atmospheric condition.  - international journal of engineering and technology (uae).  . 

nur irmawati om, rozli zulkifli, p. gunnasegaran.  (2018).  influence of the oblique fin arrangement on the fluid flow and thermal performance of liquid cold plate.  - case studies in thermal engineering.  . 

nur irmawati om, rozli zulkifli, p. gunnasegaran.  (2018).  the influence of different types of nanofluid on thermal and fluid flow performance of liquid cold plate.  - international journal of engineering & technology.  . 

mohd faizal mat tahir, mohd hasif nawi, rozli zulkifli, elwaleed awen khider, siti munirah mat yunoh.  (2018).  the effect of thickness and density on the acoustics properties of ceiba pentandra natural fiber.  - arpn journal of engineering and applied sciences.  . 

mahir faris abdullah, rozli zulkifli, zambri harun, shahrir abdullah, wan aizon wan ghopa.  (2018).  experimental and numerical simulation of the heat transfer enhancement on the twin impingement jet mechanism.  - energies.  . 

rozli zulkifli, che husna azhari.  (2018).  mode ii interlaminar fracture properties of treated silk fibre/epoxy composites at low and high temperature range.  - international journal of engineering & technology.  . 

mahir faris abdullah, rozli zulkifli, zambri harun, shahrir abdullah, wan aizon w.ghopa.  (2017).  studying of convective heat transfer over an aluminum flat plate based on twin jets impingement mechanism for different reynolds number.  - international journal of mechanical & mechatronics engineering (ijmme) the international journals of engineering and sciences (ijens).  1-16. 

poorya ooshaksaraei, kamaruzzaman sopian, saleem h. zaidi, rozli zulkifli.  (2017).  performance of four air-based photovoltaic thermal collectors configurations with bifacial solar cells.  - renewable energy.  279-293. 

majid j ghoushji, rahim a eshkoor, rozli zulkifli, abu b sulong, shahrum abdullah and che h azhari.  (2017).  energy absorption capability of axially compressed woven natural ramie/green epoxy square composite tubes.  - journal of reinforced plastics and composites.  . 

poorya ooshaksaraei, kamaruzzaman sopian, saleem h. zaidi, rozli zulkifli.  (2017).  performance of four air based photovoltaic thermal collectors configurations with bifacial solar cells.  - renewable energy.  279-293. 

faraziah hassan, rozli zulkifli, mariyam jameelah ghazali, che husna azhari.  (2017).  kenaf fiber composite in automotive industry: an overview.  - international journal on advanced science, engineering and information technology.  315-321. 

abdullah, m.f., zulkifli, r., harun, z., abdullah, s., ghopa, w.a.w., abbas, a.a..  (2017).  experimental investigation on comparison of local nusselt number using twin jet impingement mechanism.  - international journal of mechanical and mechatronics engineering.  60-75. 

ghoushji, m.j., eshkoor, r.a., zulkifli, r., sulong, a.b., abdullah, s., azhari, c.h..  (2017).  energy absorption capability of axially compressed woven natural ramie/green epoxy square composite tubes.  - journal of reinforced plastics and composites.  1028-1037. 

sim, j.s.t., zulkifli, r., abdullah, s., harun, z..  (2017).  analysis of boost conversion process for a thermoelectric module.  - international journal of advanced mechatronic systems.  144-150. 

mohd azwan husin, rozli zulkifli, shahrum abdullah and wan ramli wan daud.  (2016).  mode ii delamination of woven mengkuang fiber/woven silk laminated hybrid composites.  - materials testing.  374-380. 

badrullzamin mohd yassin, rozli zulkifli, wan ramli wan daud, shahrum abdullah.  (2016).  flexural behaviour of uni-directional kenaf composites using experimental and simulation methods.  - international journal of mechanical & mechatronics engineering.  57-64. 

zaliha wahid; sallehuddin mohamed haris; nizaroyani saibani; jaharah a. ghani; rozli zulkifli; mohd radzi abu mansor.  (2016).  examination achievement of engineering students from ukm and ude: a comparison.  - pertanika journal of social sciences and humanities.  229-238. 

zambri harun, wan aizon w. ghopa, shahrir abdullah, m. izhar ghazali, ashraf amer abbas, mohd rasidi rasani, rozli zulkifli, wan mohd faizal wan mahmood, mohd radzi abu mansor, zulkhairi zainol abidin.  (2016).  the development of a multi purpose wind tunnel.  - jurnal teknologi.  63-70. 

mohd azwan husin, rozli zulkifli, shahrum abdullah, wan ramli wan daud.  (2016).  kelakuan delaminasi komposit laminat hibrid anyaman gentian mengkuang/ gentian alat sutera/ epoksi.  - jurnal teknologi.  67-74. 

eshkoor r.a., ude a.u., sulong a.b., zulkifli r., ariffin a.k., azhari c.h..  (2015).  energy absorption and load carrying capability of woven natural silk epoxy - triggered composite tubes.  - composites part b: engineering.  10-18. 

hyder h. balla, shahrir abdullah, wan mahmood wan mohd faizal, rozli zulkifli, kamaruzaman sopian.  (2015).  enhancement of heat transfer coefficient multi-metallic nanofluid with anfis modeling for thermophysical properties.  - thermal science.  1613-1620. 

mohd rashdan awang, rozli zulkifli and shahrir abdullah.  (2015).  minichannel lcp for ev battery cooling: effect of fin spacing.  - international journal of mechanical & mechatronics engineering.  68-73. 

jason sim, rozli zulkifli, shahrir abdullah, zambri harun.  (2015).  voltage stabilization of thermoelectric modules using a boost converter.  - international journal of mechanical & mechatronics engineering.  115-122. 

mohd azwan husin, rozli zulkifli, shahrum abdullah, wan ramli wan daud.  (2015).  effect of naoh concentration on mode ii critical strain energy release, giic for woven mengkuang fibre reinforced epoxy laminated composites.  - international journal of mechanical & mechatronics engineering.  26-31. 

arifin a.m.t., abdullah s., rafiquzzaman m., zulkifli r., wahab d.a..  (2014).  failure characterisation in polymer matrix composite for un-notched and notched (open-hole) specimens under tension condition.  - fibers and polymers.  1729 - 1738. 

md. ayub, mohammad hosseini fouladi, masomeh ghassem, mohd jailani mohd nor, hamidreza soheili najafabadi, nowshad amin, rozli zulkifli.  (2014).  analysis on multiple perforated plate sound absorber made of coir fiber.  - international journal of acoustics and vibration.  203-211. 

ali ahmed gitan,rozli zulkifli,shahrir abdullah,kamaruzzaman sopian.  (2014).  development of pulsating twin jets mechanism for mixing flow heat transfer analysis.  - the scientific world journal.  2014;1-8. 

r.a. eshkoor, a.u. ude, s.a. oshkovr, a.b. sulong, r. zulkifli, a.k. ariffin, c.h. azhari.  (2014).  failure mechanism of woven natural silk/epoxy rectangular composite tubes under axial quasi-static crushing test using trigger mechanism.  - international journal of impact engineering.  53-61. 

l. h. jawad, s. abdullah, r. zulkifli, w. m. f. w. mahmood.  (2014).  numerical study on the effect of interaction vaned diffuser with impeller on the performance of a modified centrifugal compressor.  - journal of mechanics.  30(2): 113-122. 

ooshaksaraei p., aghili k., sopian k., zulkifli r., zaidi s.h..  (2014).  steady state characterization of bifacial solar cells at different configurations of air-based photovoltaic thermal solar panels.  - journal of renewable and sustainable energy.  . 

a.u. ude, r.a. eshkoor, r. zulkifili, a.k. ariffin, a.w. dzuraidah, c.h. azhari.  (2014).  bombyx mori silk fibre and its composite: a review of contemporary developments.  - materials and design.  57(2014):298-305. 

a. m. t. ariffin, s. abdullah, md. rafiquzzaman, r. zulkifli, d. a. wahab & a. k. ariffin.  (2014).  investigation of the behaviour of a chopped strand mat/woven roving/foam-klegecell composite lamination structure during charpy testing.  - materials and design.  59:475-485. 

zhi li, min you, gang-yan li, jianping wang and rozli zulkifli.  (2013).  influencing factors on stress distribution of weld bonding joint under bending load.  - journal of applied sciences.  13(20):4153-4157. 

hyder h. balla, shahrir abdullah, wan mohd faizal wan mahmood, rozli zulkifli, kamaruzaman sopian.  (2013).  numerical study of the enhancement of heat transfer for hybrid cuo-cu nanofluids flowing in a circular pipe.  - journal of oleo science.  62(7):533-539. 

hyder h. balla, shahrir abdullah, wan mohd faizal wan mahmood, m. abdul razzaq, rozli zulkifli, kamaruzaman sopian.  (2013).  modelling and measuring the thermal conductivity of multi-metallic zn/cu nanofluid.  - research on chemical intermediates.  39(6):2801-2815. 

layth h. jawad, s. abdullah, r. zulkifli, and w.m.f.w. mahmood.  (2013).  numerical investigation on the effect of impeller trimming on the performance of a modified compressor.  - cfd letters.  5(4):174-178. 

r.a. eshkoor, s.a. oshkovr, a.b. sulong, r. zulkifli, a.k. ariffin, c.h. azhari.  (2013).  effect of trigger configuration on the crashworthiness characteristics of natural silk epoxy composite tubes.  - composites part b: engineering.  55:5-10. 

hyder h. balla, shahrir abdullah, emad a. jaffar al-mulla, wan mohd faizal wan mahmood, rozli zulkifli, kamaruzaman sopian.  (2013).  effect of reynolds number on heat transfer and flow for multi-oxide nanofluids using numerical simulation.  - research on chemical intermediates.  39(5):2197-2210. 

r.a. eshkoor, s.a. oshkovr, a.b. sulong, r. zulkifli, a.k. ariffin, c.h. azhari.  (2013).  comparative research on the crashworthiness characteristics of woven natural silk/epoxy composite tubes.  - materials and design.  47:248-257. 

p. ooshaksaraei, k. sopian, r. zulkifli, and saleem h. zaidi.  (2013).  characterization of air-based photovoltaic thermal panels with bifacial solar cells.  - international journal of photoenergy.  2013:Article ID 978234. 

b. daryakenari, s. abdullah, r. zulkifli, e. sundararajan, a. b. mohd sood.  (2013).  numerical study of flow over ahmed body and a road vehicle and the change in aerodynamic characteristics caused by rear spoiler.  - international journal of fluid mechanics research.  40(4):354-372. 

behrang daryakenari, shahrir abdullah, rozli zulkifli.  (2013).  reducing vehicle drag force through a tapered rear side wall.  - sae international journal of commercial vehicles.  6(2):582-588. 

b. daryakenari, s. abdullah, r. zulkifli, a. shamsudeen.  (2012).  numerical study of multiple channel road vehicle underbody diffusers.  - international review of mechanical engineering.  6(3):583-587. 

layth h. jawad, s. abdullah, r. zulkifli and w.m.f.w. mahmood.  (2012).  numerical simulation of flow inside a modified turbocharger centrifugal compressor.  - asian journal of applied sciences.  5(8):563-572. 

m. f. mat tahir, m. z. nuawi, r. zulkifli, s. abdullah, m. a. mohd sabri.  (2012).  study on correlation of sound absorption coefficient for automotive noise absorption panel material by using sabine method and z-octave method.  - international review of mechanical engineering (ireme).  6(3):640-643. 

jawad, l.h., abdullah, s., zulkifli, r., mahmood, w.m.f.w..  (2012).  prediction of centrifugal compressor performance by using adaptive neuro-fuzzy inference system (anfis).  - international review on modelling and simulations.  5(4):1580-1587. 

hyder h. balla, shahrir abdullah, rozli zulkifli, wan mohd faizal and kamaruzzaman sopian.  (2012).  effect of oxides nanoparticle materials on the pressure loss and heat transfer of nanofluids in circular pipes.  - journal of applied sciences.  12(13):1396-1401. 

jawad, l.h., abdullah, s., zulkifli, r., mahmood, w.m.f.w..  (2012).  modelling of centrifugal compressor impellers using adaptive neuro- fuzzy inference systems (anfis).  - international review of mechanical engineering.  6(5):1011-1017. 

md. ayub, mohd jailani mohd nor, mohammad hosseini fouladi, rozli zulkifli and nowshad amin.  (2012).  a practical acoustical absorption analysis of coir fiber based on rigid frame modeling.  - acoustical physics.  58(2);246-255. 

rozli zulkifli, ali ahmed gitan, kamaruzzaman sopian, shahrir abdullah.  (2012).  multiple pulsating jets mechanism for heat transfer enhancement.  - international review of mechanical engineering.  6(3):654-658. 

b. daryakenari, s. abdullah, r. zulkifli, e. sundararajan, a. b. mohd sood.  (2012).  reducing the aerodynamic forces through a rear spoiler.  - international review on modelling and simulations.  5(6): 2512-2517. 

ahmad rasdan ismail, shashi kumar s a karagaratnan, rozli zulkifli, baba md deros, mohd nizam abdul rahman.  (2012).  a review on thermal comfort assessment in malaysian industries.  - jurnal teknologi (sciences & engineering).  59:7-11. 

zulkarnain, rozli zulkifli & mohd jailani mohd nor.  (2011).  kesan lapisan berliang dan nisbah keluasan plat berlubang terhadap ciri akustik serabut sabut kelapa sebagai bahan penyerap bunyi.  - sains malaysiana.  40(6):623-629. 

rozli zulkifli, mohd faizal mat tahir, mohd jailani mohd nor & ahmad rasdan ismail.  (2011).  pekali penyerapan bunyi dan indek kehilangan penghantaran panel penyerap bunyi menggunakan gentian sabut kelapa.  - jurnal teknologi.  54:13-24. 

m.a. mussa, s. abdullah, c.s. nor azwadi, r. zulkifli.  (2011).  lattice boltzmann simulation of cavity flows at various reynolds numbers.  - international review on modelling and simulations.  4(4):1909-1919. 

ahmad rasdan ismail, norfadzilah jusoh, mohd. nizam ab. rahman, rozli zulkifli and kumaran kardigama.  (2011).  thermal comfort assessment at parcel and logistic industry: a field study in malaysia.  - the institution of engineering journal.  72(3):36-40. 

zulkarnain; zulkifli, r; nor, mjm.  (2011).  effect of porous layer backing and perforation ratio of perforated plate on acoustic characteristics of coconut fibre as a sound absorbent.  - sains malaysiana.  40(6):623-629. 

m. ayub, r. zulkifli, m.h. fouladi, n. amin, m.j.m. nor.  (2011).  a study on the acoustical absorption behavior of coir fiber using miki model.  - international journal of mechanical and materials engineering.  6(3):343-349. 

mohd jailani mohd nor, md. ayub, rozli zulkifli, nowshad amin and mohammad hosseini fouladi.  (2010).  effect of compression on the acoustic absorption of coir fiber.  - american journal of applied sciences.  7(9):1285-1290. 

m.z. nuawi, taib i. mohamad, m. f. h. hussin, s. abdullah, r. zulkifli, m.k. zakaria.  (2010).  preliminary study of condition-based monitoring (cbm) on automotive gearbox using ultrasonic signals.  - world applied sciences journal.  9(2):118-126. 

zulkifli r., zulkarnain, nor m.j.m..  (2010).  noise control using coconut coir fiber sound absorber with porous layer backing and perforated panel.  - american journal of applied sciences.  7(2):260-264. 

r.zulkiflili, c.h. azhari.  (2010).  interfacial treatment of multi-layer woven silk/epoxy composites.  - international review of mechanical engineering.  4(1):1-6. 

r. zulkifli, k. sopian, s. abdullah, m. s. takriff.  (2010).  analysis of pulse air jet flow profiles.  - international review of mechanical engineering.  4(5):495-501. 

mohd jailani mohd nor, md. ayub, rozli zulkifli, nowshad amin and mohammad hosseini fouladi.  (2010).  effect of different factors on the acoustic absorption of coir fiber.  - journal of applied sciences.  10(22):2887-2892. 

rozli zulkifli, zulkarnain, mohd jailani mohd nor.  (2010).  noise absorption properties of coir fiber with porous layer facing.  - international review of mechanical engineering.  4(4):405-409. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2009).  comparison of local nusselt number between steady and pulsating jet at different jet reynolds number.  - wseas transactions on environment and development.  5(5):384-393. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah, mohd sobri takriff.  (2009).  comparison of local nusselt number for steady and pulsating circular jet at reynolds number of 16000.  - european journal of scientific research.  29(3):369-378. 

rozli zulkifli, mohd jailani mohd nor, ahmad rasdan ismail, mohd zaki nuawi, mohd faizal mat tahir.  (2009).  effect of perforated size and air gap thickness on acoustic properties of coir fibre sound absorption panels.  - european journal of scientific research.  28(2):242-252. 

a. r. ismail. n. jusoh, k. sopian, i.m.s. usman, r. zulkifli, m.n.a. rahman.  (2009).  thermal comfort assessment: a study at malaysia car manufacturer.  - european journal of scientific research.  27(4):510-523. 

rozli zulkifli, che husna azhari, maryam j. ghazali, ahmad rasdan ismail, abu bakar sulong.  (2009).  interlaminar fracture toughness of multi-layer woven silk/epoxy composites treated with coupling agent.  - european journal of scientific research.  27(3):454-462. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah, mohd sobri takriff.  (2009).  correlations of percentage increases in local nusselt number with radial distance for steady and pulsating jet.  - international review of mechanical engineering.  3(5): 613-618. 

omar n., zulkifli r., hassan r..  (2009).  development of a virtual laboratory for radiation heat transfer.  - european journal of scientific research.  32(4):562-571. 

a.r. ismail, m.l. yeo, m.h.m. haniff, r. zulkifli, b.m. deros, n.k. makhtar.  (2009).  assessment of postural loading among the assembly operators: a case study at malaysian automotive industry.  - european journal of scientific research.  30(2):224-235. 

ismail a.r., hashim e., ghani j.a., zulkifli r., kamilah n., rahman m.n.a..  (2009).  implementation of eis: a study at malaysian smes.  - european journal of scientific research.  30(2):215-223. 

a. r. ismail, y. c. soon, s. abdullah, r. zulkifli, k. sopian, m.n.a. rahman.  (2009).  reverse engineering in fabrication of piston crown.  - european journal of scientific research.  29(1):136-146. 

a.r. ismail, r. ismail, r. zulkifli, n. k. makhtar, b. m. deros.  (2009).  a study on implementation of preventive maintenance programme at malaysia palm oil mill.  - european journal of scientific research.  29(1):126-135. 

a. r. ismail, m.j.m.nor, m.r.a. mansor, m.f.m.tahir, r.zulkifli.  (2009).  environmental noise assessment and modeling in malaysia: a comparative monitoring study.  - european journal of scientific research.  30(2):236-244. 

zulkifli r..  (2009).  surface fracture analysis of glass fibre reinforced epoxy composites treated with different type of coupling agent.  - european journal of scientific research.  29(1):55-65. 

a.r. ismail, n. jusoh, r. zulkifli, k. sopian and b.m. deros.  (2009).  thermal comfort assessment: a case study at malaysian automotive industry.  - american journal of applied sciences.  6(8):1495-1501. 

ismail a.r., manap a.h.a.a., wahab d.a., zulkifli r., makhtar n.k., sopian k..  (2009).  concurrent engineering approach in designing pressure vessel.  - european journal of scientific research.  30(2):245-252. 

zulkifli r., nor m.j.m., ismail a.r., nuawi m.z., abdullah s., tahir m.f.m., rahman m.n.a..  (2009).  comparison of acoustic properties between coir fibre and oil palm fibre.  - european journal of scientific research.  33(1):144-152. 

abdullah s., fahruddin a., syarif j., omar m.z., zulkifli r..  (2009).  fatigue crack growth modelling of fibre metal laminate (fml) composite.  - european journal of scientific research.  35(1):43-53. 

sulong a.b., azhari c.h., zulkifli r., othman m.r., park j..  (2009).  a comparison of defects produced on oxidation of carbon nanotubes by acid and uv ozone treatment.  - european journal of scientific research.  33(2):295-304. 

omar n., ismail m.f., zulkifli r., hassan r..  (2009).  development of a real-time temperature and voltage monitoring system for semiconductor devices.  - european journal of scientific research.  34(2):168-177. 

a.r.ismail, m.r.a.mansor, m.j.m.nor, m.z.nuawi, r. zulkifli, m. n. ab. rahman and k. sopian.  (2008).  comparative studies and impact analysis of environmental noise modeling from malaysian industrial projects.  - wseas transactions on environment and development.  4(8):666-675. 

r. zulkifli, m.j. mohd nor, m.f. mat tahir, a.r. ismail and m. z. nuawi.  (2008).  acoustic properties of multi-layer coir fibres sound absorption panel.  - journal of applied sciences.  8(20):3709-3714. 

m. z. nuawi, s. abdullah, a. r. ismail, r. zulkifli, m. k. zakaria and m. f. h. hussin.  (2008).  a study on ultrasonic signals processing generated from automobile engine block using statistical analysis.  - wseas transactions on signal processing.  4(5):279-288. 

rozli zulkifli and kamaruzzaman sopian.  (2006).  pulsating circular air jet impingement heat transfer.  - journal of institution of engineers malaysia.  67(3): 47-53.