Lizina, Olga, Dinara Bistyaykina, Eka Ermakova, Tatyana Badokina, and Tatiana Solovyeva. “The Informal Sector in the Structure of the National Economy: Simulation and Evaluation”. Journal of Eastern European and Central Asian Research (JEECAR) 7, no. 3 (December 1, 2020): 292–304. Accessed July 2, 2024. https://ieeca.org/journal/index.php/JEECAR/article/view/599.