1. The European literature review on internal auditing;Managerial Auditing Journal,2006
2. Identifying organizational drivers of internal audit effectiveness;International Journal of Auditing,2009
3. Audit Executive Centre (2016), “2016 North American pulse of internal audit: time to move out of the comfort zone”, available at: www.iia.nl/SiteFiles/Downloads/2016%20North%20American%20Pulse%20of%20Internal%20Audit%20Report%20(2).pdf (accessed 3 April 2016).
4. Perceptions on the value added by South African internal audit functions;African Journal of Business Management,2009
5. Internal auditors and a value-added approach: the new business regime;Managerial Auditing Journal,2000