Coal as a Vital Energy Resource: A brief Overview of its Inception from the British period to now, with special reference to Salanpur Coal Belt Area of West Bengal. Economy Polity Environment (2583-6390), [S. l.], v. 6, n. 1, p. 49–58, 2025. Disponível em: http://epef.in/index.php/journal/article/view/35. Acesso em: 26 oct. 2025.