1. Skjorten MD, Johnsen BH, Eds. Pendidikan Kebutuhan Khusus, Sebuah Pengantar. Oslo: Unipub forlag 2003.
2. Hardman ML. Inclusion: Issues of Educating Students with Disabilities in Regular Education Settings. [Internet]. ERIC 1993. Available from: https://eric.ed.gov/?id=ED370342
3. UNESCO. Guidelines for Inclusion: Ensuring Access to Education for All [Internet]. Vol. 53, Unesco. Paris; 2005. Available from: http://www.ibe.unesco.org/sites/default/ files/Guidelines_for_Inclusion_UNESCO_2006.pdf
4. Nakata H. Educational Cooperation Bases System Construction Project, Implementation Report. Center for Research on International Cooperation in Educational Development (CRICED), University of Tsukuba, Japan 2003.
5. Koestler FA. The unseen minority: A social history of blindness in the United States. American Foundation for the Blind 2004.