Naviy, L., G. G. Zhussupbekova, N. M. Stukalenko, B. B. Zhakhina, L. S. Baimanova, and A. K. Kukubaeva. “Development of Communication and Speech Skills of Students in the Process of Education”. Journal of Intellectual Disability - Diagnosis and Treatment, vol. 8, no. 3, Sept. 2020, pp. 437-42, doi:10.6000/2292-2598.2020.08.03.21.