Y. D. Mangela, B. Hamzah, S. Rahmawati, and S. H. V. Pulukadang, “Determination of Hydrolyzed Tannin Content in Cocoa Fruit Peel Waste of MCC 01 Clone, Using UV-Vis Spectrophotometry”, J. Akademika Kimia, vol. 14, no. 1, pp. 58–63, Feb. 2025.