Accolade Musikverlag
www.accolade.de
Botsotso
www.botsotso.org.za
The British Music Collection
www.britishmusiccollection.org.uk
Documentation Centre for Music
digital.lib.sun.ac.za/handle/10019.2/2957
NewMusicSA
www.newmusicsa.org.za/members.html
SA Composers, University of Pretoria
www.up.ac.za/sacomposers/article/2756372/simon-john