Erika, Y. E. Indrastuti, L. Purwandani, and Susana. “Characteristics of Edible Film from Sago Starch and Glycerol As Instant Coffee Packaging”. SEMAI: Journal of Scientific Exploration of Modern Agrotechnological Innovations, Vol. 1, no. 1, Feb. 2025, pp. 7-14, https://ejurnal.polnep.ac.id/index.php/semai/article/view/1060.