S. M. Kelen, M. O. . Hartini, M. . Fahik, L. Usman, and N. R. A. . Mahmud, “SYNTHESIS AND CHARACTERISTICS OF CHITOSAN FROM WASTE FISH SCALES AND CRAB SHELLS PRODUCED IN KUPANG CITY”, JP, vol. 14, no. 3, pp. 1567–1576, Sep. 2024.