DAS, E. S.; GUPTA, G. C. Problem of Grass Land Improvement in the Hills of the Western Himalayas. Indian Forester, [S. l.], v. 93, n. 1, p. 22–26, 1967. DOI: 10.36808/if/1967/v93i1/25517. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/25517. Acesso em: 5 dec. 2025.