RAI, Vibhuti; SINGH, Aradhana. Northern Margin of India in the Pre-Himalayan times. Himalayan Journal of Sciences, [S. l.], v. 5, n. 7, p. 115, 2008. DOI: 10.3126/hjs.v5i7.1304. Disponível em: https://nepjol.info./index.php/HJS/article/view/1304. Acesso em: 13 jan. 2025.