Thijs, Jochem, and Maykel Verkuyten. “In-Group Bias in the Classroom: The Role of Co-Ethnic and Other-Ethnic Peers and Multiculturalism”. Anales De Psicología Annals of Psychology, vol. 27, no. 3, Oct. 2011, pp. 662-9, https://revistas.um.es/analesps/article/view/135241.