WARTH, H. Pine Resin in Jaunsar. Indian Forester, [S. l.], v. 14, n. 12, p. 555–557, DOI: 10.36808/if/1888/v14i12/14413. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/14413. Acesso em: 5 dec. 2025.