Bakholskaya, N., O. Nazarova, S. Velikanova, K. Zharova, N. Igoshina, and O. Chernykh. “Inter-Ethnic Tolerance and Its Development Among Pedagogical Students of Higher Educational Institutions”. Amazonia Investiga, Vol. 8, no. 18, Feb. 2019, pp. 359-65, https://amazoniainvestiga.info/index.php/amazonia/article/view/318.