Tusupbekova Ш. . . The history of the calendar and its role in the present time. Рroblems of engineering and professional education, [S. l.], v. 70, n. 3, p. 54–60, 2024. DOI: 10.32523/2220-685X-2023-70-3-54-60. Disponível em: https://bulprengpe.enu.kz/index.php/main/article/view/701. Acesso em: 14 nov. 2024.