CASTRO-GONZÁLEZ, S.; MEDINA LEÓN, J. C. Economic Crisis’s influence over the quantification of Puerto Rico’s Shadow Economy: Parsimonious Econometric Proposal. Journal of Applied Business and Economics, [S. l.], v. 19, n. 8, 2017. Disponível em: https://articlearchives.co/index.php/JABE/article/view/667. Acesso em: 24 sep. 2025.