“Effektifitas Pengendalian Phytophthora Palmivora Dengan Agensia Hayati Terhadap Peningkatan Produktivitas Kakao [The Effectiveness Control of Phytophthora Palmivora With Biological Agents on Cocoa Produktivity Improvement]”. E-Journal Menara Perkebunan 85, no. 1 (June 20, 2017). Accessed October 24, 2026. http://mp.iribb.org/index.php/mpjurnal/article/view/230.