A., Akpan, G.,  Usoro, H. S., and Enoidem Usoro. “Theoretical Bases for Supervisory Practices in Vocational Education: In Usoro, E. B. And Usoro, H. S. (eds). Readings in Vocational Administration and Supervision”. Afrischolar Discovery Repository (Annex) (June 6, 2010): 212 – 231. Accessed September 8, 2024. https://publications.afrischolar.net/index.php/home/article/view/214.