NORRAHMAD, Norrahmad; EDWIN, Muli; PUTRA, Mufti Perwira. Penilaian Perkembangan Tanah Berdasarkan Tingkat Pencucian Liat Dan Nilai Kapasitas Tukar Kation Pada Daerah Hulu Sungai Sangatta Kutai Timur. Jurnal Pertanian Terpadu, [S. l.], v. 3, n. 1, p. 101–113, 2015. DOI: 10.36084/jpt.v3i1.92. Disponível em: https://ojs.mine-cloud.my.id/index.php/jpt/article/view/92. Acesso em: 14 mar. 2026.