N. S. Abd Rahman, R. Mohd Adnan, A. S. Mohd Nazari, and S. Sidek, “Organic Olive Oil Soap Prepared Via Saponification Method”, MARI, vol. 3, no. 1, pp. 1–6, Feb. 2022, Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/mari/article/view/2811