Huynh, Van Chung, and Thi Thanh Vy Dinh. “Total Phenolic Content and Antioxidant Activity Assessed Using Coffee Grounds at Daklak”. Dong Thap University Journal of Science 11, no. 2 (April 14, 2022): 33–38. Accessed August 16, 2026. https://dthujs.vn/index.php/dthujs/article/view/116.