CHANDRA, D. Coal Petrology (Koela Saileki) in Hindi. Journal of Geological Society of India, [S. l.], v. 42, n. 1, p. 104–105, 1993. Disponível em: https://geosocindia.com/index.php/jgsi/article/view/67537. Acesso em: 20 sep. 2024.