MUJIYO, M.; SUMARNO, S.; SUDADI, S.; MURTI, R. W. Assessment of soil degradation in Pitu District, Ngawi Regency. Journal of Degraded and Mining Lands Management, Malang, Indonesia, v. 7, n. 2, p. 2049–2057, 2020. DOI: 10.15243/jdmlm.2020.072.2049. Disponível em: https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/601. Acesso em: 22 jan. 2025.