References

Referees who can confirm the information herein.

Dr Thulani Jili
Head of Department
University of Zululand (Department of Physics)
Phone083 524 6464
Emailthulani.jili@gmail.com
Dr Zolile Mtumela
Senior Lecturer in Physics
Sol Plaatjie University (Department of Physical and Earth Sciences)
Phone053 491 0039
Emailzolile.mtumela@spu.ac.za
Mr. JJ Myeni
School Principal
Mpumalanga Department of Education
Phone082 670 1023
Emailmczithacombined62@gmail.com