van der Walt, J. J., C. C. Wolhuter, and F. J. Potgieter. “Three Current Developments in Teaching-Learning and Knowledge Creation and the Implications Thereof for Education: A Reformational Perspective”. Tydskrif Vir Christelike Wetenskap | Journal for Christian Scholarship, vol. 52, no. 2, July 2016, pp. 179-9, https://pubs.ufs.ac.za/index.php/tcw/article/view/396.