Niemann-Struweg, Ilse; Meintjes, Corne; Grobler, Anske F.(Unit for Community Communication, Dept of Communication and Information Studies, University of the Free State, 2007)
Chang, Tsangyao; Simo-Kengne, Beatrice Desiree; Gupta, Rangan(Statistical, Economic and Social Research and Training Centre for Islamic Countries, 2014)
Masiya, Tyanai; Davids, Yul D.; Mangai, Mary S.(Research Centre in Public Administration and Public Services, Bucharest University of Economic Studies, 2019-05)