TURNER, J. E. C. Telephony in Forestry. Indian Forester, [S. l.], v. 50, n. 3, p. 112–137, 1924. DOI: 10.36808/if/1924/v50i3/18670. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/18670. Acesso em: 5 dec. 2025.