RAY, S. Productivity Growth in Some Energy Intensive Manufacturing Industries in India : An analytical Assessment. International Journal of Economics and Financial Issues, [S. l.], v. 2, n. 1, p. 54–70, 2011. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/71. Acesso em: 18 apr. 2024.