Refereed Journals

• Zulkifli, N., Abdullah, L. & Garg, H. (2021). An Integrated Interval-Valued Intuitionistic Fuzzy Vague Set and Their Linguistic Variables. International Journal of Fuzzy System. 23:182-193.

• Abdullah, L., Zulkifli, N., Liao, H. & Herrera-Viedma, E. (2019). An interval-valued intuitionistic fuzzy DEMATEL method combined with Choquet integral for sustainable solid waste management. Engineering Applications of Artificial Intelligence 82, 207 – 215.

• Abdullah, L. & Zulkifli, N. (2017). A new DEMATEL method based on interval type-2 fuzzy sets for developing causal relationship of knowledge management criteria. Neural Computing and Applications, 8.

• Abdullah, L. & Zulkifli, N. (2015). Integration of fuzzy AHP and interval type-2 fuzzy DEMATEL: An application to human resource management. Expert Systems with Applications. 42(9), 4397-4409.

Conference Paper

• Zulkifli, N. & Abdullah, L. (2018). Intuitionistic Fuzzy DEMATEL for Municipal Solid Waste Treatment Technologies. Proceeding International Journal of Engineering & Technology, 7 (3.7):610-612.

• Abdullah, L. & Zulkifli, N. (2015). Fuzzy DEMATEL for Determining the Importance of Criteria in Computer Vendor Selection. Proceeding in Advances in Information Sciences and Service Sciences. 21.

Book Chapter

• Abdullah, L., Ahmad, S., Sabri, N,H., Mohd Zin, Z., Wan Hassan, W.H. & Zulkifli, N. (2016). Saintis Islam: Anjakan Cendekiawan Profesional: Modul Pengembangan Daya Fikir & Intelektual. UMT Publisher, Kuala Terengganu, Malaysia. ISBN 978-967-0962-160.