Jeniffer, K., و S. Cheboi. "Teachers’ Collegiality and Its Influence on Learners’ Academic Performance in Public Secondary Schools of Baringo North Sub-County, Keny"a. East African Journal of Interdisciplinary Studies, م 3, عدد 1, July 2021, ص 144-50, doi:10.37284/eajis.3.1.358.