Кірдан О. MANAGERIAL COMPETENCE OF FUTURE HIGH SCHOOL TEACHERS AND HEADS OF EDUCATIONAL INSTITUTIONS: CONCEPTUAL-CATEGORICAL ANALYSIS. MEIT [Internet]. 2023Aug.30 [cited 2024May14];2(28-02):19-24. Available from: https://moderntechno.de/index.php/meit/article/view/meit28-02-005