1. Guide to access to the environment in Saudi Arabia King Salman, Center for Disability Research, 1431 – 2010.
4. Guide to comprehensive access in the land transport modes in the Kingdom King Salman, Center for Disability Research, 1431 - 2010.
5. Guide to Comprehensive Access to Maritime Transport in the Kingdom. King Salman Center for Disability Research.1431 - 2010.
6. Directory of islands, sidewalks and streets, Ministry of Municipal and Rural Affairs.2010.
8. Building for Everyone: A Universal Design Approach- External Environment and Apporoach, Vol.1 ; Centre for Excellence in Universal Design;
www.universaldesign.ie
9. Building for Everyone: A Universal Design Approach- Vertical Circulation, Vol.3 ; Centre for Excellence in Universal Design;
www.universaldesign.ie
10. Building for Everyone: A Universal Design Approach- Building types, Vol.7 ; Centre for Excellence in Universal Design;
www.universaldesign.ie
12. Guidance on the use of Tactile Paving Surfaces; https://www.gov.uk/government/uploads/system/uploads/ attachment_data/file/289245/tactile-paving-surfaces.pdf