Teng Hui Chen, et al. “Comparison Study on Antimicrobial Activity and Antimicrobial Agent Release of Virgin Coconut Oil (VCO) and Lauric Acid Modified Pullulan Starch Based Films”. Progress in Engineering Application and Technology, vol. 1, no. 1, Dec. 2020, pp. 378-89, https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/143.