DYVAK, Volodymyr V. FORMATION OF ECONOMIC COMPETENCE OF PRINCIPALS IN THE SYSTEM OF POSTGRADUATE PEDAGOGICAL EDUCATION. Information Technologies and Learning Tools, [S. l.], v. 9, n. 1, 2010. DOI: 10.33407/itlt.v9i1.13. Disponível em: https://journal.iitta.gov.ua/index.php/itlt/article/view/13.. Acesso em: 3 may. 2024.