SINGH, L.; SINGH, R. Spatio-demographic structure of Patna in its ecological setting. ERDKUNDE, [S. l.], v. 34, n. 4, p. 281–287, 1980. DOI: 10.3112/erdkunde.1980.04.04. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1923. Acesso em: 12 mar. 2025.