Gama, Robin Lothary Assessing the Effectiveness of Open Performance Review and Appraisal System Among Public Secondary School Teachers in Rural Iringa Tanzania / Robin Lothary Gama - Dar es Salaam : The Open University of Tanzania, 2014. - xiii, 65p. : ill. ; 30cm. Include Bibliographic References and Appendices. Subjects--Topical Terms: Performance Review and Appraisal ; Secondary Dewey Class. No.: EA DIS 658.3125678 GAM