KENESBAEVA ELMIRA ZHOLDASBAEVNA. Issues of increasing the professional competence of the head in the management of secondary education institutions. International Journal on Integrated Education, [S. l.], v. 3, n. 8, p. 119–121, 2020. DOI: 10.31149/ijie.v3i8.544. Disponível em: https://journals.researchparks.org/index.php/IJIE/article/view/544. Acesso em: 7 nov. 2026.