Prawoto, Adi. “A Study on Cocoa (Theobroma Cacao L.) Budding V. The Influence of Rootstocks on Scion-Yield Quality”. Pelita Perkebunan (a Coffee and Cocoa Research Journal) 6, no. 2 (August 31, 1990): 38-46. Accessed July 17, 2024. https://ccrjournal.com/index.php/ccrj/article/view/366.