Nieuwoudt, Margaret J.(Independent Regulatory Board for Auditors (IRBA), South African Institute of Chartered Accountants (SAICA) and Southern African Accounting Association (SAAA), 2001)
Oberholzer, Ruanda(Independent Regulatory Board for Auditors (IRBA), South African Institute of Chartered Accountants (SAICA) and Southern African Accounting Association (SAAA), 2004-06)
Coetzee, Vinet; Barrett, Louise; Greeff, Jaco M. (Jacobus Maree); Henzi, S. Peter; Perrett, David Ian; Wadee, Ahmed A.(Public Library of Science, 2007-07)