RAO, J. N. K. Some Sampling Methods in Forest Surveys. Indian Forester, [S. l.], v. 85, n. 12, p. 723–727, 1959. DOI: 10.36808/if/1959/v85i12/24830. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/24830. Acesso em: 5 dec. 2025.