AZARYAN, Robert. LEVEL OF KNOWLEDGE OF TEACHERS IN QUESTIONS ABOUT SHORT-SIGHTEDNESS OF STUDENTS. Education in the 21st Century, [S. l.], v. 1, n. 1, p. 46–51, 2023. DOI: 10.46991/educ-21st-century.v1i1.10714. Disponível em: https://journals.ysu.am/index.php/Educ-21st-Century/article/view/10714. Acesso em: 22 nov. 2024.