Vinichenko, M. V., S. A. Makushkin, A. V. Melnichuk, E. V. Frolova, and S. N. Kurbakova. “Student Employment During College Studies and After Career Start”. International Review of Management and Marketing, vol. 6, no. 5S, Aug. 2016, pp. 23-29, https://econjournals.com/index.php/irmm/article/view/2718.