Shtovba, S. D., and O. V. Shtovba. “Identification of the Relationship Among the Corruption and the Shadow Economy in European Countries in 2003—2012 Years”. Visnyk of Vinnytsia Politechnical Institute, no. 4 (August 30, 2013): 63–68. Accessed July 16, 2024. https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/1058.