Amalia R, Endy Yulianto M, Agustina A. Optimization of Spray Drying Process Parameter Condition for Theaflavin Extract from Black Tea (Camellia sinensis) Using Response Surface Methodology (RSM). IFSTJ [Internet]. 2024 Dec. 31 [cited 2025 Jul. 5];8(1):138-4. Available from: https://mail.online-journal.unja.ac.id/ifstj/article/view/33645