Mahmood Ali Ayub and Hideo Hashimoto. The Economics of Tin Mining in Bolivia. Washington, D.C.: World Bank 1985. The Pakistan Development Review, [S. l.], v. 25, n. 2, p. pp.197–199, 2022. DOI: 10.30541/v25i2pp.197-199. Disponível em: https://thepdr.pk/index.php/pdr/article/view/720. Acesso em: 10 jun. 2025.