BOYKO, O. Subject-activity model in forming officer’s leadership competence in the Academy of Ground Forces of Ukraine. Journal of Education, Technology and Computer Science, [S. l.], n. 1, p. 405–409, 2013. DOI: 2080-9069. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6866. Acesso em: 22 lip. 2024.