IMANBAYEVA, Akmaral. Титул 2 (57) 2016. Recent Contributions to Physics, [S. l.], v. 2016, n. 2, p. 1–2, 2016. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/927. Acesso em: 5 июл. 2026.