Carrim, Nasima Mohamed Hoosen; Basson, Johan Schutte; Coetzee, Melinde(Graduate School of Business Leadership and the Department of Business Management, University of South Africa, 2006)
Van der Walt, Ruan; Van der Walt, S.J.(Department of Business Management, University of Pretoria & Academic Entrepreneurship Society of South Africa (AcES), 2008)
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)