SAR, Rabindranath. Md. Sahid Ummar (1950-2022). Journal of Geological Society of India, [S. l.], v. 98, n. 12, p. 1774–1774, 2022. DOI: 10.1007/s12594-022-2253-1. Disponível em: http://www.geosocindia.com/index.php/jgsi/article/view/173783. Acesso em: 21 may. 2024.