PARCHA, S. K. Cambrian sequence of the Spiti Valley, NW Himalaya and its boundary problems. Journal of Nepal Geological Society, [S. l.], v. 10, p. 21–27, 1995. DOI: 10.3126/jngs.v10i0.32135. Disponível em: https://nepjol.info/index.php/JNGS/article/view/32135. Acesso em: 27 sep. 2024.