Fenty Maimunah Simbolon, Noverina Chaniago and Joni Pranata Ginting (2020) “RESPONSE OF FROM OIL PALM EMPTY FRUITS AND EM-4 COMPOSTING ON TOP SOIL MEDIA TO VEGETATIVE GROWTH OF COCOA ( Theobroma cacao L.)”, International Journal of Educational Research Excellence (IJERE), pp. 39–45. Available at: https://ejournal.ipinternasional.com/index.php/ijere/article/view/657 (Accessed: 22 November 2024).