Siregar, H., Rizal, K., Ayu Putri Septyani, I., & Walida, H. (2024). Identification of Available Nutrients NPK of Oil Palm Soil (Elaeis guineensis Jacq) in the Phase of Immature Plants. JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA), 6(2), 629–634. https://doi.org/10.36378/juatika.v6i2.3662