Manullang, Windy, and Firman RL Silalahi. “PENGARUH KOMPOSISI MEDIA TANAM TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma Cacao L.).”. Agrica Ekstensia 13, no. 2 (January 9, 2020): 28-34. Accessed May 8, 2024. https://ejournal.polbangtanmedan.ac.id/index.php/agrica/article/view/9.