OMONOVICH, E. A. . Earning Extra-Budgetary Funds in Professional Educational Institutions: Problems and Solutions. Miasto Przyszłości, [S. l.], v. 53, p. 216–218, 2024. Disponível em: https://miastoprzyszlosci.com.pl/index.php/mp/article/view/4793. Acesso em: 22 dec. 2024.