• https://ir.unisa.ac.za/handle/10500/29161
• https://ir.unisa.ac.za/handle/10500/30683
• https://ir.unisa.ac.za/handle/10500/30684
• https://ir.unisa.ac.za/handle/10500/30685
• https://ir.unisa.ac.za/handle/10500/30686
• https://ir.unisa.ac.za/handle/10500/30687
• https://ir.unisa.ac.za/handle/10500/30688
• https://ir.unisa.ac.za/handle/10500/30712
• https://ir.unisa.ac.za/handle/10500/30689
• https://ir.unisa.ac.za/handle/10500/30690
• https://ir.unisa.ac.za/handle/10500/30691
• https://ir.unisa.ac.za/handle/10500/30692
• https://ir.unisa.ac.za/handle/10500/30693
• https://ir.unisa.ac.za/handle/10500/30694
• https://ir.unisa.ac.za/handle/10500/29162
• https://ir.unisa.ac.za/handle/10500/29164
• https://ir.unisa.ac.za/handle/10500/29163
• https://ir.unisa.ac.za/handle/10500/29283
• https://ir.unisa.ac.za/handle/10500/29552
• https://ir.unisa.ac.za/handle/10500/30706
• https://ir.unisa.ac.za/handle/10500/30711
• https://ir.unisa.ac.za/handle/10500/30710
• https://ir.unisa.ac.za/handle/10500/30709