Fadly, Dzul, Clara M. Kusharto, Lilik Kustiyah, and Pipih Suptijah. 2017. “Physicochemical Characteristics of Carboxymethyl Chitosan from Silkworm (Bombyx Mori L.) Pupa”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 31 (1):204-12. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/6779.