Mohamed EL-HODIRI and Ainur Ongdas, “Problems of industrial and Innovative Development of Economy of the Republic of Kazakhstan in Modern Conditions” Proceedings of the 34th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-3-3, 13-14 November 2019, Madrid, Spain, p. 7947-7956.
EL-HODIRI Mohamed, KUDASHEVA Tatyana and MUKHAMEDIYEV Bulat, “The Lorenz Curve and the Measurement of Inequality in Kazakhstan,” Proceedings of the 34th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-3-3, 13-14 November 2019, Madrid, Spain, p. 7779-7789.