Adlin, Wan Nur Afini Binti Wan, Vivien Jong Yi Mian, Ang Chung Huap, and Wen-Chien Lee. “Characterization of Biosurfactants Produced by Bacillus Subtilis Using Fresh and Waste Cooking Oil Enriched Medium”. Journal of Asian Scientific Research 10, no. 3 (June 15, 2020): 156–164. Accessed March 29, 2024. https://archive.aessweb.com/index.php/5003/article/view/3964.