Sepdian Luri, Fryandika A, Setyoko U. Respon Pertumbuhan Stek Kopi Robusta (Coffea canephora Pierre ex A. Froehner) menggunakan Filtrat Bahan Alami yang Mengandung Zat Pengatur Tumbuh Tumbuhan (ZPT) Alami: The Growth Response of Robusta Coffee Cuttings (Coffea canephora Pierre ex A. Froehner) using Natural Ingredients Filtrate Containing Natural Plant Growth Regulatory Substances (PGR). j.ilm.inov. [Internet]. 2023 Apr. 30 [cited 2025 Mar. 13];23(1):69-74. Available from: https://publikasi.polije.ac.id/jii/article/view/3861