Fitria, D. A., Daulay, A. S., Ridwanto, R. and Nasution, H. M. (2026) “Determination of Catechin Content and Antioxidant Activity of Brewed and Ethanolic Extracts of Cacao Beans (Theobroma cacao L.) Using Uv-Vis Spectrophotometry”, Journal of Pharmaceutical and Sciences, 9(3), pp. 2349–2361. doi: 10.36490/journal-jps.com.v9i3.1763.