REHMAN, M. A.; KISHEN, Jai. Treatment of Indian Timbers for Pencils and Hand Tools for Pencil Making. Indian Forester, [S. l.], v. 77, n. 11, p. 699–701, 1951. DOI: 10.36808/if/1951/v77i11/23329. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/23329. Acesso em: 29 oct. 2025.