Údar
Foundation for Education, Science, and Technology (South Africa). Bureau for Scientific Publications
1
Gereformeerde Teologiese Vereniging
1
Philosophical Society of Southern Africa
1
Randse Afrikaanse Universiteit. Centre for Islamic Studies
1
South Africa. Department of National Education
1
University of Cape Town. Centre for Contemporary Islam
1
University of Pretoria. Faculty of Theology. Nederduitse Gereformeerde Kerk
1
University of Pretoria. Navorsings- en Publikasiekomitee
1
University of the Free State
1
University of the Orange Free State
1