“Factors that Affect Teachers’ Performance Appraisal at Bahir Dar Polytechnic College” (2016) International Journal of Emerging Trends in Science and Technology, 3(07), pp. 4316–4323. Available at: http://igmpublication.com/ijetst.in/index.php/ijetst/article/view/1144 (Accessed: 28 September 2026).