USEH, Ushotanefe. 2002. “A Review of Historical, Geographical and Vocational Influences on the Selected Indigenous African Sports: The Challenges for the Sports Scientists: 從歷史、地理及職業角度來探討對南非本土運動的影嚮: 對運動科研學者的新挑戰”. Asian Journal of Physical Education &Amp; Recreation 8 (2):32-37. https://doi.org/10.24112/ajper.81267.