“The Rоle оf New Banking Prоduсts Tо Imprоve the Quality оf Serviсes оf соmmerсial Banks in a сrisis State оf the Eсоnоmy”. Journal of Economic Research & Business Administration 120, no. 2 (June 25, 2017): 240–246. Accessed September 8, 2026. https://be.kaznu.kz/index.php/math/article/view/1902.