Khoerunisa NM, Al Dina, Anisa Afifatul Azizah, and Andika Adhi Setianingsih. “Adsorption of Heavy Metal Chromium (Cr) Using Pineapple Skin Filtrate With the Chelation Method”. Formosa Journal of Applied Sciences 1, no. 7 (December 29, 2022): 1373–1382. Accessed September 20, 2024. https://journal.formosapublisher.org/index.php/fjas/article/view/1999.