Du Toit, Elda(Independent Regulatory Board for Auditors (IRBA), South African Institute of Chartered Accountants (SAICA) and Southern African Accounting Association (SAAA), 2008)
Wolmarans, Hendrik Petrus; Meintjes, Quentin(University of Pretoria, Department of Business Management & Academic Entrepreneurship Society of South Africa (AcES), 2015)