I. Anita-Sari, S. Sobir, A. Wahyu Susilo, A. Hidayatullah, P. Sugianto, and I. Faizal, “Genetic Diversity Analysis of Edel Cocoa Clones Parental Cross Using Maturase K (matK) Gene”, PelitaPerkebunan, vol. 34, no. 1, pp. 23-32, Apr. 2018.