Oberholzer, Ruanda(Independent Regulatory Board for Auditors (IRBA), South African Institute of Chartered Accountants (SAICA) and Southern African Accounting Association (SAAA), 2004-06)
Van der Merwe, Willemien; Basson, Johan Schutte; Coetzee, Melinde(Graduate School of Business Leadership and the Department of Business Management, University of South Africa, 2009)
Seymore, Reyno; Adams, Philip D.; Chitiga-Mabugu, Margaret; Van Heerden, J.H. (Jan Horn), 1957-; Blignaut, James Nelson(Bureau for Economic Research and the Graduate School of Business,University of Stellenbosch, 2010-02)