Kupeshova Tazhieva Nurmagambetova, C. S. A. T. K. M. “Problems of Development of Innovative Activity in the Republic of Kazakhstan”. Journal of Economic Research & Business Administration 114, no. 2 (November 30, 2016). Accessed November 24, 2024. https://be.kaznu.kz/index.php/math/article/view/1276.