Krekova, Marina M., Ekaterina V. Shevchenko, Raisa A. Shchinova, Maria V. Zelinskaya, and Amir M. Akhmadeev. 2016. “Small Business: Essence, Formation and Development”. International Review of Management and Marketing 6 (6S):154-58. https://econjournals.com/index.php/irmm/article/view/2946.