Mahdalena. “Uji Ekstrak Bawang Merah (Allium Cepa L.) Dan Beberapa Media Tanam Terhadap Keberhasilan Sambung Pucuk Bibit Kopi Robusta (Coffea Robusta L.): Test of Shallot Extract (Allium Cepa L.) and Several Planting Media on the Success of Shoot Grafting of Robusta Coffee Seedlings (Coffea Robusta L.)”. Agrifarm: Jurnal Ilmu Pertanian 12, no. 2 (December 17, 2023): 115–120. Accessed November 22, 2024. https://journal.uwgm.ac.id/agrifarm/article/view/2553.