Kroeze, J.H. (Jan Hendrik); Bothma, T.J.D. (Theodorus Jan Daniel); Matthee, Machdel C.; Kruger, Ockert C.; Kroeze, Jan C.W.(Stellenbosch University: Department of Ancient Studies, 2009)
Kroeze, J.H. (Jan Hendrik); Matthee, Machdel C.; Bothma, T.J.D. (Theodorus Jan Daniel)(Department of Knowledge and Information Management, University of Johannesburg, 2004-12)
Lotriet, H.H. (Hugo H.); Matthee, Machdel C.; Alexander, Patricia Margaret(Southern African Association for Research in Mathematics, Science and Technology Education, 2011)