RAO, P. V. C. Contour Tillage and Terracing. Indian Forester, [S. l.], v. 74, n. 12, p. 402–402, 1948. DOI: 10.36808/if/1948/v74i12/23058. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/23058. Acesso em: 4 dec. 2025.