Rivandani, I., & Hartatie, D. (2019). Perbanyakan Vegetatif Tanaman Kopi Robusta (Coffea canephora) Berbagai Macam klon Terhadap Keberhasilan Sambung Dini. Agropross : National Conference Proceedings of Agriculture, 3, 153–161. Diambil dari https://proceedings.polije.ac.id/index.php/agropross/article/view/527