Utandi Harahap, Sabribal, Fitra Syawal Harahap, Hilwa Walida, and Khairul Rizal. “Study Of Soil Physical Properties Of Oil Palm Plants (Elaeis Guinensis Jacq) In The Labuhanbatu University Practice Area In Rantau Selatan District”. International Journal of Science and Environment (IJSE) 4, no. 3 (August 31, 2024): 91–96. Accessed March 8, 2025. https://ijsenet.com/index.php/IJSE/article/view/49.