Oksari, Ade Ayu, Neneng Hasanah, Irvan Fadli Wanda, and RTM Sutamihardja. “Characteristics of Ground Coffee Quality on Variations in Temperature and Roasting Time for Robusta Coffee (Coffea Canephora Pierre Ex A.Froehner) Green Bean”. Indonesian Journal of Applied Research (IJAR) 4, no. 1 (April 18, 2023): 11-26. Accessed July 3, 2024. https://iojs.unida.ac.id/index.php/IJAR/article/view/284.