Maidin N, Rahman M, Ahmad M, Rahman S, Osman M, Wahid M, Alkahari M. Initial Design of Semi Auto Soap Making Device from Used Cooking Oil for Home Appliances. JAMT [Internet]. 2018Aug.27 [cited 2025Jul.6];12(1(2):69-78. Available from: https://ojsdemo.utem.edu.my/jamt/article/view/4270