Ivinskaya, E. Y., Nikitin, A. A., Markovichev, A. S., Sinenko, V. Y., Mavrina, I. A., Zhafyarov, A. Z., … Zhukov, G. N. (2016). Development of Competitive Relations in the Russian Market of Educational Services. International Review of Management and Marketing, 6(1), 65–69. Retrieved from https://econjournals.com/index.php/irmm/article/view/1738