Afifuddin, Hariyadi, and Suwarto. “Manajemen Pemupukan Tanaman Kelapa Sawit (Elaeis Guineensis Jacq.) Pada Tanaman Menghasilkan Di Kebun Petapahan, Kampar, Riau”. Buletin Agrohorti 11, no. 1 (January 20, 2023): 51–58. Accessed December 23, 2025. https://journal.ipb.ac.id/bulagron/article/view/46582.