Rana, R., G. K’aol, and M. Kirubi. “The Influence of Participative and Supportive Path-Goal Leadership Styles on Employee Performance of Coffee Trading Companies in Kenya”. The International Journal of Business & Management, vol. 7, no. 6, June 2019, doi:10.24940/theijbm/2019/v7/i6/BM1906-035.