Sleepers on the North-Western Railway. Indian Forester, [S. l.], v. 24, n. 8, p. 293–297, DOI: 10.36808/if/1898/v24i8/15561. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/15561. Acesso em: 27 dec. 2025.