Ivanenko, Nina A., Olga N. Perezhogina, Valentina A. Komelina, Vladimir A. Mishchenko, Viktor T. Parkhaev, Liliya I. Fatykhova, Adel R. Mullagaliev, and Irina Y. Litvin. 2016. “Diversification of Domestic and Foreign Models of Vocational Training Institutions Rating”. International Review of Management and Marketing 6 (1):58-64. https://econjournals.org.tr/index.php/irmm/article/view/1737.