HNATENKO, Tamara. STAGES OF FORMATION OF BASIC CONCEPTS OF DISTANCE LEARNING. Education in the 21st Century, [S. l.], v. 1, n. 5, p. 118–125, 2023. DOI: 10.46991/educ-21st-century.v1i5.10712. Disponível em: https://journals.ysu.am/index.php/Educ-21st-Century/article/view/10712. Acesso em: 23 nov. 2024.