Malek, Nur Athilah Akma, et al. “Assessing Community Readiness to Convert Waste Cooking Oil (WCO) into Soap in Parit Jelutong, Johor”. Progress in Engineering Application and Technology, vol. 7, no. 1, May 2026, pp. 37-45, https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/22889.