I think these are some of the studies could be interesting and helpful for you.
Zeedyk, S. M., Rodriguez, G., Tipton, L. A., Baker, B. L., & Blacher, J. (2014). Bullying of youth with autism spectrum disorder, intellectual disability, or typical development: victim and parent perspectives. Research in autism spectrum disorders, 8(9), 1173-1183.
Rose, C. A., Stormont, M., Wang, Z., Simpson, C. G., Preast, J. L., & Green, A. L. (2015). Bullying and Students With Disabilities: Examination of Disability Status and Educational Placement. School Psychology Review, 44(4), 425-444.
Chatzitheochari, S., Parsons, S., & Platt, L. (2014). Bullying experiences among disabled children and young people in England: Evidence from two longitudinal studies.
You may also want to look at UNICEF reports on children with disabilities. The report from South Africa, Children with Disabilities in South Africa: A Situational Analysis 2001-2011, includes a chapter which discusses unfulfilled rights and inequities faced by children with disabilities.
Beelmann, A., & Heinemann, K. S. (2014). Preventing prejudice and improving intergroup attitudes: A meta-analysis of child and adolescent training programs. Journal of applied developmental psychology, 35(1), 10-24.
Berger, R., Benatov, J., Abu-Raiya, H., & Tadmor, C. T. (2016). Reducing prejudice and promoting positive intergroup attitudes among elementary-school children in the context of the Israeli–Palestinian conflict. Journal of School Psychology.
Dane-Staples, E., Lieberman, L., Ratciff, J., & Rounds, K. (2013). Bullying experiences of individuals with visual impairment: The mitigating role of sport participation. Journal of Sport Behavior, 36(4), 365.
Fishbein, H. D. (2002). Peer prejudice and discrimination: The origins of prejudice. Psychology Press.
Puhl, R. M., & King, K. M. (2013). Weight discrimination and bullying. Best practice & research Clinical endocrinology & metabolism, 27(2), 117-127.
Chicago
Russell, S. T., Sinclair, K. O., Poteat, V. P., & Koenig, B. W. (2012). Adolescent health and harassment based on discriminatory bias. American Journal of Public Health, 102(3), 493-495.