BLOCK, W. Teeth Whitening and Occupational Licensing. Journal of Economics and Political Economy, [S. l.], v. 2, n. 3, p. 347–350, 2015. DOI: 10.1453/jepe.v2i3.347. Disponível em: https://journals.econsciences.com/index.php/JEPE/article/view/347. Acesso em: 19 sep. 2024.