Makero , J. T., N. J. Kathuri, and B. Owiti. “The Influence of Leadership Style in Enhancing Teachers’ Discretionary Work Effort in Public Secondary Schools in Isiolo County, Kenya”. International Journal of Professional Practice, vol. 11, no. 3, Aug. 2023, pp. 90-103, doi:10.1234/ijpp.v11i3.376.