Кірдан, Олена. “MANAGERIAL COMPETENCE OF FUTURE HIGH SCHOOL TEACHERS AND HEADS OF EDUCATIONAL INSTITUTIONS: CONCEPTUAL-CATEGORICAL ANALYSIS”. Modern engineering and innovative technologies 2, no. 28-02 (August 30, 2023): 19–24. Accessed April 3, 2025. https://moderntechno.de/index.php/meit/article/view/meit28-02-005.