“Aplication Chitosan Modified Carboxymethyl As Antibacterial Agent of Paper Packaging”. ALKIMIA : Jurnal Ilmu Kimia dan Terapan 6, no. 2 (March 15, 2023): 244–250. Accessed September 17, 2024. https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/13702.