DR. LAL SING; DR. ASLAM KHAN. Copper use in China and India as a Proxy for Economic Development. OEconomia, [S. l.], v. 6, n. 2, p. 44–55, 2023. Disponível em: https://oeconomiajournal.com/index.php/Journal/article/view/56. Acesso em: 21 nov. 2024.