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. PDR [Internet]. 2007 Mar. 1 [cited 2025 Dec. 6];46(1):pp.99-101. Available from: https://www.thepdr.pk/index.php/pdr/article/view/2172