CHACKO, V. J. The Second Stage of Statistics in Forestry and Forest Products Work. Indian Forester, [S. l.], v. 92, n. 10, p. 646–652, 1966. DOI: 10.36808/if/1966/v92i10/25418. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/25418. Acesso em: 10 jul. 2025.