Vesile Evrim and  Aliyu Awwal,  Effect of Personality Traits on Classification of Political Orientation.   journal   = {International Journal of Psychological and Behavioral Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2015, vol. 102(6). 2001 - 2006
    [viewed 21 November 2019]. Available from: https://publications.waset.org/pdf/10001874.