Аkhmetov Ж.Т., and Azhmukhamedova А.А. “Risks in Payment Systems”. ECONOMIC Series of the Bulletin of the L N Gumilyov ENU, no. 3 (January 25, 2023): 116–122. Accessed December 4, 2024. https://bulecon.enu.kz/index.php/main/article/view/327.