Akhiruddin Tanjung, Saroha Manurung, and Aulia Juanda Djaingsastro. “The Relationship Between Soil Conservation Techniques, Topsoil Depth, and Density of Vegetation Growing and Soil Organic C Content in Palm Oil (Elaeis Guineensis Jacq) Plant Areas at Plantation IV Regional II Pabatu North Sumatra Province, Indonesia”. JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) 8, no. 2 (May 1, 2026): 745 -. Accessed September 23, 2026. https://ejournal.uniks.ac.id/index.php/JUATIKA/article/view/5519.