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. 

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. 

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. 

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. 

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. 

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

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.  . 

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. 

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. 

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.