Damayanti, Rinta Eka, Fandyka Yufriza Ali, Sepdian Luri Asmono, dan Dian Galuh Pratita. “Respon Bibit Kopi Robusta (Coffea Canephora) Terhadap Pemberian KNO3 Dan Ekstrak Bawang Merah”. Agropross : National Conference Proceedings of Agriculture (Oktober 22, 2024): 475–482. Diakses April 29, 2025. https://proceedings.polije.ac.id/index.php/agropross/article/view/761.