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]. 2022 Dec. 24 [cited 2025 Apr. 26];46(1):pp.99-101. Available from: https://thepdr.pk/index.php/pdr/article/view/2172