nisa balqis masnoor, noor farah wahida, noorhelyna razali, shahrum abdullah & habibis saleh.  (2025).  a simplified conservative runge–kutta method for numerical prediction of fatigue crack growth.  - jurnal kejuruteraan.  2841 - 2850. 

aishah mahat, zulkifli mohd nopiah, siti mistima maat, noorhelyna razali.  (2025).  an early detection of student mathematical competency in engineering mathematics courses.  - jurnal kejuruteraan.  1683 - 1689. 

amalina ismail, nuryazmin ahmat zainuri, noorhelyna razali, nur arzilah ismail & izamarlina asshaari.  (2025).  application of rasch analysis in exploring communication skills among engineering technology graduates in malaysia.  - jurnal kejuruteraan.  3631 - 3639. 

ali j. kadhim, annie gorgey, noorhelyna razali.  (2023).  active extrapolation of dimsims in nordsieck representation.  - jurnal teknologi.  195-202. 

m.f. zairul fuaad, n. razali, h. hishamuddin, a. jedi.  (2022).  accuracy and efficiency of symmetrized implicit midpoint rule for solving the water tank system problems.  - mathematics and statistics.  1-14. 

n. b. masnoor, n. razali, a. jedi, f. m. hamzah, m. h. osman, h. othman.  (2022).  a comparison study of students performance for vector calculus subject.  - universal journal of educational research.  215-224. 

n. razali, n.b. masnoor, s. abdullah, m.f.h.m. zainaphi.  (2022).  acoustic analysis using symmetrised implicit midpoint rule.  - frattura ed integrità strutturale.  214-229. 

n. adan, n. razali, n. a. zainuri, n. a. ismail, a. gorgey, n. i. hamdan.  (2022).  solving lorenz system by using lower order symmetrized runge-kutta methods.  - mathematics and statistics.  713-728. 

nurul syafiqah zulkefly, hawa hishamuddin, fatin amrina a. rashid, noorhelyna razali, nizaroyani saibani, mohd nizam ab rahman.  (2021).  the effect of transportation disruptions on cold chain sustainability.  - evergreen.  262-270. 

che nuru saniyyati, noorhelyna razali, haliza othman, nazatul aini abd majid.  (2021).  the acceptance and interest of students for the use of virtual reality (vr) in learning mathematics.  - universal journal of educational research.  1949-1961. 

n. razali, n. a. zainuri, a. jedi.  (2020).  the implementation of extrapolation with smoothing technique in solving stiff ordinary differential equations.  - international journal of structural integrity.  567-578. 

n. razali, n.a. zainuri, h. othman, z.m. nopiah and n.a.a. bakar.  (2020).  engineering students performance in mathematics through project-based learning.  - universal journal of educational research.  1899-1906. 

nurmasitah margono, noorhelyna razali, alias jedi, annie gorgey.  (2020).  ordinary differential equation in funnel design for fastest bottling process.  - test engineering and management.  10695-10702. 

ali j. kadhim, a. gorgey, n. arbin and n. razali.  (2020).  accuracy of implicit dimsims with extrapolation.  - the australian journal of mathematical analysis and applications.  1-10. 

noraishikin zulkarnain, noorhelyna razali, nuryazmin ahmat zainuri, haliza othman, alias jedi.  (2020).  mathematics day: elements and applications of mathematics in the final year project.  - mathematics and statistics.  458-463. 

alias jedi, noorhelyna razali, wan mohd faizal wan mahmood, nor ashikin abu bakar.  (2019).  statistical criteria of nanofluid flows over a stretching sheet with the effects of magnetic field and viscous dissipation.  - symmetry.  1-17. 

nuryazmin ahmat zainuri, noorhelyna razali, haliza othman, alias jedi, noraishikin zulkarnain.  (2019).  existence of long memory phenomenon in air pollutant concentrations using surrogate data.  - international journal of innovative technology and exploring engineering (ijitee).  752-757. 

noraishikin zulkarnain, hairi zamzuri, sarah a'tifah sachuri, aini hussain, siti salasiah mokri, muhammad alias md jedi, noorhelyna razali, ili najaa aimi mohd nordin.  (2018).  optimised combinatorial control strategy for active anti-roll bar system for ground vehicle.  - international journal of engineering & technology.  . 

n. razali, z. m. nopiah and h. othman.  (2018).  comparison of one-step and two-step symmetrization in the variable stepsize setting.  - sains malaysiana.  . 

norhana arsad, roszilah hamid, hafizah husain, noorhelyna razali, mohd shahbudin mastar @ masdar, mohd farid mohamed.  (2016).  special issue on k-inovasi pengajaran dan pembelajaran ukm (pendidikan kejuruteraan dan alam bina), feb 2016.  - journal of engineering science and technology (jestec).  1-101. 

nuryazmin ahmat zainuri, izamarlina asshaari, fadiah hirza mohammad ariff, noorhelyna razali, haliza othman, firdaus mohd hamzah, zulkifli mohd nopiah.  (2016).  item analysis for final exam questions of engineering mathematics course (vector calculus) in ukm.  - journal of engineering science and technology.  53-60. 

noorhelyna razali, haliza othman, nuryazmin ahmat zainuri, firdaus mohamad hamzah, izamarlina asshaari, fadiah hirza mohammad ariff, zulkifli mohd nopiah.  (2016).  modern or traditional teaching strategy in learning engineering mathematics course.  - journal of engineering science and technology.  13-20. 

chan r.p.k., razali n..  (2014).  smoothing effects on the imr and itr.  - numerical algorithms.  401 - 420. 

n. razali, r.p.k. chan.  (2013).  implementation of symmetrizers in ordinary differential equations.  - anziam journal.  541-563. 

izamarlina asshaari, haliza othman, noorhelyna razali, norngainy mohd tawil, fadiah hirza mohd. ariff.  (2011).  comparison between level of students` responses toward cooperative learning in mathematics engineering courses at ukm.  - wseas transactions on advances in engineering education.  8(2):53-61. 

razali, n. & ahmad, r..  (2009).  solving lorenz system by using runge-kutta method.  - european journal of scientific research.  3(2):241-251.