“Synthesis of Carboxylated Chitosan Amide Using Some Cyclic Anhydride and Their Activities As Antifungal”. Jurnal Kimia Valensi 9, no. 2 (December 15, 2023): 224–234. Accessed November 20, 2025. https://journal.uinjkt.ac.id/valensi/article/view/35244.