S. Mutmainah, A. Wati, and C. Sula, “Application of Swiftlet Manure Bokashi and NPK Mutiara Fertilizer on the Growth of Oil Palm Seedlings (Elaeis guineensis Jacq.) in the Pre-Nursery: Aplikasi Bokashi Kotoran Walet dan Pupuk NPK Mutiara terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) di Pre-Nursery”, agri. j. ilmu. pertan., vol. 15, no. 1, pp. 76–87, Jul. 2026.