Fredrich Schneider and Dominik H. Enste. The Shadow Economy—An International Survey. New Delhi / Thousand Oaks / London: Sage Publications. 2006. Paperback. Indian Rs 550.00. The Pakistan Development Review, [S. l.], v. 46, n. 1, p. pp.99–101, 2007. DOI: 10.30541/v46i1pp.99-101. Disponível em: https://thepdr.pk/index.php/pdr/article/view/2172. Acesso em: 27 oct. 2025.