Fombad, Madeleine C.; Boon, J.A. (Johannes Anton); Bothma, T.J.D. (Theodorus Jan Daniel)(Department of Knowledge and Information Management, University of Johannesburg, 2009-06)
Le Roux, Alta; Snyman, M.E. (Martha Elizabeth)(Unit for Community Communication, Dept of Communication and Information Studies, University of the Free State, 2007-11)