Tleppayev, Arsen, Madina Khalitova, Aksana Panzabekova, Rashid Ruzanov, and Saule Nurymova. “Identification and Analysis of Factors Affecting the Level of Kazakhstan’s Shadow Economy”. Asian Economic and Financial Review 15, no. 6 (July 8, 2025): 956–978. Accessed July 9, 2025. http://archive.aessweb.com/index.php/5002/article/view/5457.