Erdiansyah, Novie, Ucu Sumirat, and Priyono -. “Variation of Potential Yield of Hybrid Population of Robusta Coffee (Coffea Canepor”. Pelita Perkebunan (a Coffee and Cocoa Research Journal) 30, no. 2 (August 31, 2014): 92-99. Accessed September 30, 2022. https://ccrjournal.com/index.php/ccrj/article/view/3.