Yusmargana, Fuji Astuti, Nunung Kurniasih, and Assyifa Junitasari. 2025. “Application of Chitosan from Crab Shell Waste (Portunus Pelagicus) As a Preservative for Muli Bananas (Musa Acuminata L) ”. ISTEK 14 (2):57-61. https://doi.org/10.15575/istek.v14i2.2396.