“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.)”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), vol. 28, no. 2, Aug. 2012, pp. 72-81, https://mail.ccrjournal.com/index.php/ccrj/article/view/.