Widyotomo, Sukrisno, and Yusianto Yusi. “Optimizing of Arabica Coffee Bean Fermentation Process Using a Controlled Fermentor”. Pelita Perkebunan (a Coffee and Cocoa Research Journal) 29, no. 1 (1). Accessed January 1, 2025. https://ccrjournal.com/index.php/ccrj/article/view/191.