Sihotang, T. D. B., Rumengan, I. F., Wullur , S., Paransa, D. S., Kawung, N. J., & Paulus, J. J. (2024). Study on The Determination of Chitosan Functional Groups of Sotong (Sepia sp ) Bone Extract. JURNAL PESISIR DAN LAUT TROPIS, 13(2), 211–220. https://doi.org/10.35800/jplt.13.2.2025.63121