MOROZ, O. V.; CHUKHRII, I. Y. Content and role of the informal economy: theoretical and methodological aspect of analysis. Visnyk of Vinnytsia Politechnical Institute, [S. l.], n. 5, p. 23–28, 2010. Disponível em: https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/1632. Acesso em: 16 jul. 2024.