, Thiery. Surveying instruments. Indian Forester, [S. l.], v. 25, n. 5, p. 216–217, DOI: 10.36808/if/1899/v25i5/15731. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/15731. Acesso em: 4 dec. 2025.