Mamekova, A.T., Toxanbayeva, N.K., Naubaeva, K.T., Ongarbayeva, S.S. and Akhmediyeva, K.N. 2021. A Meta-Analysis on the Impact of Gamification over Students’ Motivation. Journal of Intellectual Disability - Diagnosis and Treatment. 9, 4 (Aug. 2021), 417–422. DOI:https://doi.org/10.6000/2292-2598.2021.09.04.9.