Rowland M. Brucken,  Botswana and Nation-Building Theory.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2015, vol. 100(4). 1208 - 1217
    [viewed 13 July 2020]. Available from: https://publications.waset.org/pdf/10001055.