Iin Arsensi, Asiah Wati, M. V. Buaq, and A. Albertus, “Synergistic Effects of Coconut Water-Based Liquid Organic Fertilizer and NPK Mutiara Fertilizer on the Growth Parameters of Liberica Coffee Seedlings (Coffea liberica W. Bull ex Hiern): Sinergi POC Air Kelapa Dan NPK Mutiara Terhadap Parameter Pertumbuhan Bibit Kopi Liberika (Coffea liberica W. Bull Ex Hiern)”, agri. j. ilmu. pertan., vol. 15, no. 1, pp. 88–104, Aug. 2026.