Wolmarans, Hendrik Petrus; Meintjes, Quentin(University of Pretoria, Department of Business Management & Academic Entrepreneurship Society of South Africa (AcES), 2015)
Gouws, Daan G.; Habtezion, A.Y.; Vermaak, Frans N.S.; Wolmarans, Hendrik Petrus(Faculty of Economic and Management Sciences University of Pretoria, 2006-09)