Zakariyya, F. and Yuliasmara, F. (2015) “Top Grafting Performance of Some Cocoa (Theobroma cacao L.) Clones as Affected by Scion Budwood Number”, Pelita Perkebunan (a Coffee and Cocoa Research Journal), 31(3), pp. 163-174. doi: 10.22302/iccri.jur.pelitaperkebunan.v31i3.198.