1. Reviewing charts and graphs with SAS accessibility.
https://www.afb.org/aw/19/7/15075
. Accessed 10 Nov 2019
2. Making charts accessible for people with visual impairments.
https://www.elsevier.com/connect/making-charts-accessible-for-people-with-visual-impairments
. Accessed 21 Oct. 2019
3. The Braille Authority of North America: Guidelines and Standards for Tactile Graphics (2010)
4. Highcharts - manufacturer’s website.
https://www.highcharts.com/demo
. Accessed 25 Oct 2019
5. SAS PRODUCTS & SOLUTIONS - manufacturer’s website.
http://support.sas.com/software/products/graphics-accelerator/samples/index.html
. Accessed 10 Nov 2019