Nor Liyana Jaafar, , Husna Zulkifly, and Nora Yusof. “Development of Pineapple Peel Vinegar”. Malaysia Journal of Invention and Innovation, vol. 3, no. 5, May 2024, pp. 23-27, https://digit360.com.my/mjii/index.php/home/article/view/89.