SYAWAL HARAHAP, Fitra; HARAHAP, Arman; ARMAN, Iman; HAHOLONGAN SIDABUKKE, Simon. Physical Properties Of Ultisol Soil In Pangkatan Sub-District With The Provision Of Organic Material Types. International Journal of Science and Environment (IJSE), [S. l.], v. 5, n. 2, p. 80–84, 2025. DOI: 10.51601/ijse.v5i2.155. Disponível em: https://ijsenet.com/index.php/IJSE/article/view/155. Acesso em: 5 feb. 2026.