Agustin, K.P. and Pambudiarto, B.A. 2021. OPTIMALIZATION OF CHITIN REACTION PROCESS CONDITIONS INTO CHITOSAN FROM SCALLOP SHELLS (PLACUNA PLACENTA). Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC). 1, 2 (Dec. 2021), 632–636. DOI:https://doi.org/10.30587/umgeshic.v1i2.3437.