R. Rubiyo, A. Purwantara, D. Suhendy, T. Trikoesoemaningtyas, S. Ilyas, and S. Sudarsono, “Cacao (Theobroma cacao L.) Resistance Evaluation Againts Black Pod Diseaseand Effectiveness of Inoculation Methods”, PP, vol. 24, no. 2, Jul. 2008.