1. Alberta Human Services 2013 My life workbook http://humanservices.alberta.ca/disability-services/pdd-poi.html
2. Australian Centre on Quality of Life 2014 Instruments http://www.acqol.com.au/instruments/index.php
3. Beach Center on Disability 2013 Beach center family quality of life scale: General description http://beachcenter.org/resource_library/beach_resource_detail_page.aspx?Type=Tool&intResourceID=2391
4. Brown , I. 2012a Family quality of life: Comparison among 16 countries
5. Brown , I. 2012b Quality of life indicators for individuals with intellectual disabilities-An overview of current practice