VARMA, H. P. Annual Conference of forest Ranger’s Association. Indian Forester, [S. l.], v. 74, n. 12, p. 397–398, 1948. DOI: 10.36808/if/1948/v74i12/23055. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/23055. Acesso em: 5 dec. 2025.