Kopytko, Marta, M. Vinichuk, and M. Veresklya. “ECONOMIC–MATHEMATICAL METHODS AND MODELS IN STRENGTHENING SOCIAL COMPONENTS OF ECONOMIC SECURITY OF UKRAINE”. Financial and credit activity: problems of theory and practice 2, no. 23 (December 30, 2017): 302–312. Accessed January 23, 2022. http://fkd1.ubs.edu.ua/article/view/121899.