Nurzhanova, A., Z. S. Z. Y. Baltagul Ospanova, and R. Barkibayeva. “Online Services in Teaching the Kazakh Language As a Foreign Language”. Opción, Vol. 36, no. 91, Apr. 2020, pp. 505-22, https://www.produccioncientificaluz.org/index.php/opcion/article/view/31863.