1. World Health Organization (WHO). World report on disability. Published 2011. https://www.who.int/publications/i/item/9789241564182. Accessed October 9, 2003.
2. South African National Council for the Blind (SANCB). Our background – SANCB placement. Published 2016. Accessed online: SANCB South African National Council for the Blind. Accessed October 9, 2003.