Syawal Harahap, F. , Harahap, A. , Arman, I. and Haholongan Sidabukke, S. 2025. Physical Properties Of Ultisol Soil In Pangkatan Sub-District With The Provision Of Organic Material Types. International Journal of Science and Environment (IJSE). 5, 2 (May 2025), 80–84. DOI:https://doi.org/10.51601/ijse.v5i2.155.