Fonkui, Thierry Youmbi
Ikhile, Monisola Itohan
Njobeh, Patrick Berka
Ndinteh, Derek Tantoh
Funding for this research was provided by:
Global Excellence and Stature (GES) University of Johannesburg (Scholarship)
Article History
Received: 26 July 2018
Accepted: 19 October 2019
First Online: 9 November 2019
Competing interests
: The authors declare that they have no competing interests.