IRC International Water and Sanitation Centre. Towards effective programming for WASH in schools: A manual on scaling up programmes for water, sanitation and hygiene in schools. [Internet]. Delft, The Netherlands: IRC International Water and Sanitation Centre; 2007 p. 93. Report No.: 48. Available from: http://www.unicef.org/wash/files/TP_48_WASH_Schools_07.pdf

Wilbur J. Principles and practices for the inclusion of disabled people in access to safe sanitation: a case study from Ethiopia. [Internet]. WaterAid; 2010 p. 48. Available from: http://www.wateraid.org/documents/plugin_documents/full_report_principles_and_practices_for_inclusive_sanitation_1.pdf