nadiah ruza, zainol mustafa, rika fatimah & saiful izzuan hussain.  (2013).  fuzzy logic controller approach in quality and productivity improvement program (ppkp).  - 20th national symposium on mathematical sciences(sksm20), aip conference proceeding.  . 

najib rafee, zainol mustafa, faridatulazna a. shahabudin, ahmad mahir razali, nasruddin hassan.  (2012).  level of english proficiency among science students of ukm.  - procedia social and behavioral sciences - ukm teaching and learning congress 2011.  . 

nora muda, wan rosmanira ismail, faridatulazna ahmad shahabudin, humaida banu samsudin, nur riza mohd suradi, noriza majid, rokiah @ rozita ahmad, azmin sham rambely, nur jumaadzan zaleha mamat et. al.  (2012).  teaching science and mathematics in english steering mastery in english language amongst sciences students in ukm.  - procedia social and behavioral sciences - ukm teaching and learning congress 2011.  . 

noriza majid, saiful hafizah jaaman, maslina darus, roslinda mohd nazar, rokiah@rozita ahmad, nora muda, nur riza mohd suradi, azmin sham rambely, ummul khair salma din, wan rosmanira...et.al..  (2012).  transformation of teaching and learning mathematics in english: are the lecturers ready?.  - procedia social and behavioral sciences - ukm teaching and learning congress 2011.  . 

nur riza mohd suradi, norkisme zainal abidin, wan zawiah wan zin, marina zahari, zalina mohd ali, najib mahmood rafee, rokiah@rozita ahmad, azmin sham rambely, noriza majid, nora muda...et.al..  (2012).  transformation of english language as the language of knowledge in ukm teaching and learning : highlights of students` perspectives.  - procedia social and behavior sciences - ukm teaching and learning congress 2011.  . 

noriza majid, saiful hafizah jaaman, maslina darus, roslinda mohd nazar, siti norafidah mohd ramli, nur riza mohd suradi, azmin sham rambely, rokiah@rozita ahmad, ummul khair salma din, ... et at..  (2011).  the readiness of mathematics and science lecturers to teach in english from students` perspective.  - kongres pengajaran dan pembelajaran ukm 2010; tanjung keling, melaka (procedia social and behavioral sciences).  . 

wan rosmanira ismail, zainol mustafa, nora muda, norkisme zainal abidin, zaidi isa, abdul malek zakaria, nur riza mohd suradi, nur jumaadzan zaleha mamat, roslinda mohd nazar, zalina mohd ali.  (2011).  students inclination towards english language as medium of instruction in the teaching of science and mathematics.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka.  . 

zaidi isa, abdul malek zakaria, mohd ikhwan azlan, mohd salmi md. noorani, noriza majid, hamizun ismail, saiful afizah jaaman, maslina darus, roslinda mohd nazar, ...et al..  (2011).  students` perceptions of the implementation of teaching and learning of science and mathematics in english.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka.  . 

z. jamaluddin, a. m. razali and z. mustafa.  (2011).  wafer dice process improvement using six sigma approach.  - 2011 ieee international conference on quality and reliability, icqr 2011; bangkok.  . 

ali z.m., mustafa z., ying y.s., suradi n.r.m., abidin n.z., shahabuddin f.a., embi m.a., ahmad s..  (2011).  e-learning service in the school of mathematical sciences.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka.  . 

ali z.m., shahabuddin f.a., abidin n.z., suradi n.r.m., mustafa z..  (2011).  teamwork culture in improving the quality of learning basic statistics course.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka.  . 

sity daud, zainol mustafa, nur riza mohd suradi, ahmad kamal ariffin, noor rahamah abu bakar and rashila ramli.  (2011).  compliance to thesis examination procedure in the iso quality management system for teaching and learning.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka (procedia - social and behavioral sciences).  . 

khairul anuar mohd ali, zainol mustafa, kamarulzaman ibrahim, azami zaharim & koh mei sin.  (2008).  correlation analysis on buyer-seller relationship in malaysia: with reference to similarity and relationship in managerial and quality perspective..  - proceedings of the 1st wseas international conference on multivariate analysis and its application in science and engineering 2008(maase`08) istanbul, turkey, may 27-30, 2008.  99-104.