NASUTION, A. F.; ADELINA HARAHAP, R. Analysis of Soil Biological Conditions in Organic and Inorganic Agriculture Areas in Tanah Datar Regency. Jurnal Online Pertanian Tropik, [S. l.], v. 8, n. 3, p. 169–174, 2022. DOI: 10.32734/jopt.v8i3.7543. Disponível em: https://idjpcr.usu.ac.id/jpt/article/view/7543. Acesso em: 4 aug. 2025.