S.H, Suseno, et al. “MAKING CHITOSAN EDIBLE COATING FROM MARINE INVERTEBRATES WASTE AND ITS APPLICATION AS NATURAL PRESERVATIVE IN SALTED FISH PROCESSING”. Pakistan Journal of Biotechnology, vol. 12, no. 1, Mar. 2015, pp. 15-24, https://pjbt.org/index.php/pjbt/article/view/125.