RADHAKRISHNA, B. P. Professor Birbal Sahni - A Centenary Tribute. Journal of Geological Society of India, [S. l.], v. 38, n. 5, p. 449–456, 1991. Disponível em: https://geosocindia.com/index.php/jgsi/article/view/66797. Acesso em: 21 sep. 2024.