STRETTELL, G. W. Note on Caoutchouc Obtained form the Chavannesia Esculenta. Indian Forester, [S. l.], v. 1, n. 2, p. 186–190, DOI: 10.36808/if/1875/v1i2/13193. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/13193. Acesso em: 4 dec. 2025.