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Eccles, Jacquelynne; Barber, Bonnie L.; Stone, Margaret; Hunt, James (2003). "Extracurricular Activities and Adolescent Development". Journal of Social Issues. 59 (4): 865–889. doi:10.1046/j.0022-4537.2003.00095.x.
Pica-Smith, C. and Poynton, T. (2014). Supporting interethnic and interracial friendships among youth to reduce prejudice and racism in schools: the role of the school counselor. Professional School Counseling: 2014–2015, Vol. 18, No. 1, pp. 82-89. doi: doi:10.5330/prsc.18.1.u80765360j5825l0
Pica-Smith, C. and Poynton, T. (2014). Supporting interethnic and interracial friendships
among youth to reduce prejudice and racism in schools: the role of the school counselor. Professional School Counseling: 2014–2015, Vol. 18, No. 1, pp. 82-89. doi: doi:10.5330/prsc.18.1.u80765360j5825l0
Feldman, Amy (2005). "The Role of School-Based Extracurricular Activities in Adolescent Development: A Comprehensive Review and Future Directions". Review of Educational Research. 75 (2): 159–210. doi:10.3102/00346543075002159. S2CID145684535.