m. i. najeeb, z. m. nopiah, a. b. m. supian, tabrej khan, tamer a. sebaey.  (2025).  plant derivatives in single-use medical products: advancing sustainability in healthcare system.  - international journal of polymer science.  1 - 19. 

noraida azura darom, hawa hishamuddin, rizauddin ramli, zulkifli mat nopiah.  (2018).  an inventory model of supply chain disruption recovery with safety stock and carbon emission consideration.  - journal of cleaner production.  . 

hasan balfaqih, malak t. al-nory, zulkifli mohd nopiah , nizaroyani saibani.  (2017).  environmental and economic performance assessment of desalination supply chain.  - desalination.  2-9. 

mohammad k. younes, z.m. nopiah, n.e. ahmad basri, h. basri, mohammed f.m. abushammala, mohammed y. younes.  (2016).  landfill area estimation based on integrated waste disposal options and solid waste forecasting using modified anfis model.  - waste management.  3-11. 

mohammad k. younes, z. m. nopiah, n. e. ahmad basri, h. basri , mohammed f. m. abushammala & k. n. a. maulud.  (2015).  prediction of municipal solid waste generation using nonlinear autoregressive network.  - environmental monitoring and assessment.  1-10. 

intan nadia ghulam khan, wan siti adibah wan dahalan, zulkifli mohd nopiah.  (2019).  a survey on perceptions of legal and non-legal factors affecting sustainable solid waste management in malaysia.  - akademika.  41-51. 

n. lohgheswary, z. m. nopiah, a. a. aziz, e. zakaria, n. a. ismail.  (2019).  achievement of course outcome and level of bloom taxanomy in pre-final test questions.  - journal of mechanics of continua and mathematical sciences.  115-126. 

rodzidah mohd rodzi, zulkifli mohd nopiah, noor ezlin ahmad basri.  (2019).  analysis of solid waste generation and composition in malaysia tvet campus.  - international journal of integrated engineering.  158-170. 

mohd. hafizzudin md. zahir, chin ong woon, sudharshan n. raman, mohd. farid mohamed & zulkifli mohd. nopiah.  (2019).  kajian persepsi arkitek terhadap pelaksanaan bumbung hijau di malaysia: faedah, halangan dan cadangan.  - jurnal kejuruteraan.  375-381. 

m. f. mod yunoh, s. abdullah, m. h. m. saad, z. m. nopiah, m. z. nuawi, s. s. k. singh.  (2018).  probabilistic-based analysis for damaging features of fatigue strain loadings.  - frattura ed integrita strutturale.  . 

siti khadijah abdul gani, zulkifli mohd nopiah, wan siti adibah wan dahalan, kohei watanabe, muhammad abdul latif abu bakar, shahrul anuar mohd sah .  (2025).  post-closure landfills as potential wildlife habits: insights from data science in england with implications for malaysia.  - jurnal kejuruteraan.  2861 - 2887. 

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. 

m. i. najeeb, z. m. nopiah, a. b. m. supian, tabrej khan, tamer a. sebaey.  (2025).  plant derivatives in single-use medical products: advancing sustainability in healthcare system.  - international journal of polymer science.  1 - 19. 

jiao bianbian, leelavathi rajamanickam, n. lohgheswary , z. m. nopiah.  (2023).  multimodal sentimental analysis based on deep learning.  - european chemical bulletin.  3567-3573. 

jiao bianbian, leelavathi rajamanickam, n. lohgheswary, z. m. nopiah.  (2023).  the understanding of sina weibo toward popular emotional information.  - european chemical bulletin.  4445-4450. 

intan nadia ghulam khan, wan siti adibah wan dahalan, zulkifli mohd nopiah.  (2019).  enhancing sustainable solid waste management in malaysia through anti-littering laws.  - the european proceedings of social & behavioural sciences.  41-50. 

faridah zulkipli1, a) zulkifli mohd nopiah2,b) noor ezlin ahmad basri3, c) and cheng jack kie4,.  (2016).  stock flow diagram analysis on solid waste management in malaysia.  - international conference on quantitative sciences and its applications (icoqsia2016).  1-6. 

zulkifli mohd nopiah, siti sarah januri, ahmad kamal ariffin, nurulkamal masseran, shahrum abdullah.  (2016).  transition probabilities matrix of markov chain in the fatigue crack growth model.  - the 4th international conference on quantitative sciences and its applications (icoqsia 2016).  1-6. 

mohammad k. younes, z. m. nopiah, n. e. ahmad basri, and h. basri..  (2015).  priorities determination using novel analytic hierarchy process and median ranked sample set, case study of landfill siting criteria.  - the 2nd ism international statistical conference 2014 (ism-ii).  377-383. 

ahmad kadri junoh, zulkifli mohd nopiah and ahmad kamal ariffin.  (2014).  application of feed-forward neural networks for classifying acoustics levels in vehicle cabin.  - applied mechanics and materials.  . 

n. lohgheswary, effandi zakaria, zulkifli mohd nopiah.  (2024).  improving engineering mathematics learning for stem.  - .  107 - 116. 

nurul eizzaty sohimi, haryanti mohd affandi, adi irfan che ani, zulkifli mohd nopiah, norazlinda mohamad.  (2022).  exploring constructs and elements in designing building quality assessment training for malaysian construction practitioner.  - .  49-62. 

khuzainey ismail, zulkifli mohd nopiah, mohamad sattar rasul & pang chau leong.  (2020).  pengetahuan kandungan pedagogi di kalangan pengajar vokasional.  - siri 10.  43-53. 

sallehuddin mohamed haris, aghil shavalipour, zulkifli mohd. nopiah.  (2020).  komputeran simbolik untuk rekabentuk kawalan.  - .  136-148. 

nurul eizzaty sohimi, haryanti mohd affandi,adi irfan che ani, zulkifli mohd nopiah & norwaliza abdul wahab.  (2019).  importance of leadership in quality of construction project.  - .  141-152. 

umawathy techanamurthy, wardah fatimah mohammad yusoff & zulkifli mohd nopiah.  (2025).  tahap pengetahuan konsep sistem ekonomi kitaran dan kelestarian dalam kalangan pelajar universiti bidang pengajian kejuruteraan dan alam bina (knowledge level of circular economy and sustainability concepts among university students from the engineering .  - jurnal kejuruteraan.  947 - 957. 

mohammad rahim kamaluddin adibah shuib mohd norzikiri kamaruddin fauziah ibrahim zulkifli mohd nopiah lee lai soon nurakmal ahmad mustaffa malina zulkifli mohammad fadzli ramli .  (2024).  indeks jenayah rentas sempadan polis diraja malaysia.  - .  . 

izamarlina asshaari, noorhelyna razali, nuryazmin ahmat zainuri, haliza othman, munirah mohd fadzil & zulkifli mohd nopiah.  (2024).  keberkesanan pembelajaran koperatif terhadap pencapaian pelajar jka dalam kursus kalkulus vektor: analisis perbandingan antara kumpulan eksperimen dan kumpulan kawalan.  - jurnal kejuruteraan.  2383 - 2388. 

lohgheswary, zulkifli mohd nopiah, effandi zakaria.  (2024).  model addie dalam matematik kejuruteraan.  - .  . 

nuryazmin ahmat zainuri, nur arzilah ismail, izamarlina ashaari, noorhelyna razali, haliza othman, zulkifli mohd nopiah.  (2023).  pengajaran dan pembelajaran secara bersemuka dan atas talian: pencapaian pelajar dalam kursus matematik kejuruteraan.  - persidangan penyelidikan pendidikan kejuruteraan dan alam bina 2023 (peka 2023).  147-149. 

azlan arifin, ramizi mohamed, yushaizad yusof, zulkifli mohd nopiah, abdul muhaimin mahmud.  (2025).  discovering best practices for managing solar hybrid systems in rural malaysian schools.  - the 7th clean energy and technology international conference (ceat 2025).  . 

nuryazmin ahmat zainuri, muhamad alias md jedi, nur arzilah ismail, zulkifli mohd nopiah.  (2025).  advancing student success in engineering statistics course: linking problem-based learning with reliable assessment design.  - international conference on engineering and built environment education (peka 2025).  . 

muhammad imran najeeb, noorhelyna razali, izamarlina asshaari, mohd haniff osman, nuryazmin ahmat zainuri, zulkifli mohd nopiah, mohd alias md jedi.  (2025).  perception of integrating real case study in vector calculus course among engineering mathematics students: a qualitative and quantitative study.  - research in engineering education symposium (rees) 2025.  . 

muhammad imran najeeb, noorhelyna razali, izamarlina asshaari, mohd haniff osman, nuryazmin ahmat zainuri, zulkifli mohd nopiah, mohd alias md jedi.  (2025).  perception of integrating real case study in vector calculus course among engineering mathematics students: a qualitative and quantitative study.  - research in engineering education symposium (rees) 2025.  . 

muhammad imran najeeb, zulkifli mohd nopiah, nuryazmin ahmat zainuri, umawathy techanamurthy, nur azilah ismail.  (2025).  mathematical modeling for lifespan prediction of composite materials: a recent progress..  - 2025 international conference on engineering and built environment education.  .