Usoro, E. B. and Akpan, A. A. (2008). Comparative Analysis of Administrative Competencies of Male and Female Secondary School Principals in Supervision. African Research Review 2 (2) (Ethiopia).
Usoro, E. B. and Akpan, A. A. (2008). Comparative Analysis of Administrative Competencies of Male and Female Secondary School Principals in Supervision. African Research Review 2 (2) (Ethiopia).