ZHUMASHEV, R.M.; AITBAYEVA, B.M.; Nуgmetulу D. Trilinguality: past and future . Bulletin of the Karaganda university History. Philosophy series, [S. l.], v. 85, n. 1, p. 33–38, 2017. Disponível em: https://ejh.buketov.edu.kz/history-philosophy-vestnik/article/view/139. Acesso em: 27 sep. 2026.