Levushkina, S. V., R. V. Miroshnichenko, V. V. Kurennaya, and E. G. Agalarova. “Program Development of Small and Medium Enterprises in Stavropol Region of the Russian Federation”. International Journal of Economics and Financial Issues, vol. 6, no. 2S, June 2016, pp. 151-7, https://econjournals.com/index.php/ijefi/article/view/2545.