Odunga, E. W., P. Ogula, and C. Nganzi. “Effects of Teacher Quality Appraisal Scores on Students’ Academic Achievement in Secondary Schools in Baringo North Sub-County, Kenya”. The International Journal of Humanities & Social Studies, vol. 8, no. 9, Sept. 2020, doi:10.24940/theijhss/2020/v8/i9/HS2009-082.