WASET
    V. M. Mmbengwa and  J. R. M. Mabuso and  C. P. Du Plooy and  S. Laurrie and  H. D. van Schalkwyk,  Exploration of Sweet Potato Cultivar Markets Availability in North West Province, South Africa.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2014, vol. 92(8). 919 - 924
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/9999404.