SOIL LOSS AND CASSAVA YIELD UNDER RIDGE TILLAGE IN HUMID TROPICAL CLIMATE OF SUMATERA, INDONESIA . GEOMATE Journal, [S. l.], v. 18, n. 67, p. 1–7, 2020. Disponível em: https://geomatejournal.com/geomate/article/view/467. Acesso em: 29 apr. 2026.