P.H. Hutapea, T, Rukisah ., Mulyadi ., K A. Madurani, Suprapto ., and F. Kurniawan. “Milkfish (Chanos Chanos) Gelatin As Biosensor Material for Chromium (III) Detection”. International Journal of Engineering & Technology 7, no. 4.14 (December 24, 2019): 227–231. Accessed February 22, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/27570.