Sadykova Ж. Definitions and concepts of electronic textbooks. Рroblems of engineering and professional education, [S. l.], v. 30, n. 2, p. 36–42, 2023. DOI: 10.32523/2220-685X-2015-30-2-36-42. Disponível em: https://bulprengpe.enu.kz/index.php/main/article/view/674. Acesso em: 9 may. 2024.