HOPKINS, G. M. Fuel Suplies in the United Provinces. Indian Forester, [S. l.], v. 70, n. 8, p. 253–256, 1944. DOI: 10.36808/if/1944/v70i8/22205. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/22205. Acesso em: 29 oct. 2025.