Atieno Otieno, T. , Phylisters , M. and Ursulla, O. (trans.) (2021) “Professional Development Appraisal And Teacher Performance Among Secondary Schools In Migori County”, International Journal of Scientific Research and Management (IJSRM), 9(11), pp. 1973–1982. doi:10.18535/ijsrm/v9i11.el02.