Boren, et al. “Pengaruh Pemberian Pupuk Kotoran Walet Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis Gueneensis Jacq) Di Pre Nursery”. Jurnal Research Ilmu Pertanian, vol. 4, no. 1, Feb. 2024, pp. 1-10, https://doi.org/10.31933/xk7evy14.