“Keberhasilan Sambungan Pada Beberapa Jenis Batang Atas Dan Famili Batang Bawah Kakao (Theobroma Cocoa L.). (Grafting Performance of Some Scion Clones and Root-Stock Family on Cocoa (Theobroma Cocoa L.)”. 2012. Pelita Perkebunan (a Coffee and Cocoa Research Journal) 28 (2): 72-81. https://mail.ccrjournal.com/index.php/ccrj/article/view/.