BARBARYAN, Mesrop. TEACHERS’ OPINION ABOUT THE PROBLEMS OF IMPLEMENTATION OF PHYSICAL EDUCATION IN SECONDARY SCHOOL. Education in the 21st Century, [S. l.], v. 2, n. 4, p. 14–25, 2023. DOI: 10.46991/educ-21st-century.v2i4.10870. Disponível em: https://journals.ysu.am/index.php/Educ-21st-Century/article/view/10870. Acesso em: 24 nov. 2024.