ANAND KUMAR SINGH AND DR. MANISH VARSHNEY. Indian Oil & Gas Industry: A Critical Overview. International journal of economic perspectives, [S. l.], v. 11, n. 1, p. 154–159, 2017. Disponível em: https://ijeponline.org/index.php/journal/article/view/248. Acesso em: 2 may. 2026.