Chepkoech E. PERCEPTION OF TEACHERS TOWARDS TEACHER PERFORMANCE APPRAISAL AND ITS EFFECT ON SCHOOL ACADEMIC PERFORMANCE IN TRANS-NZOIA COUNTY, KENYA. as [Internet]. 2015Oct.31 [cited 2024Dec.12];1(6):24-1. Available from: http://467182.nmy9asj5x.asia/index.php/as/article/view/2338