Medugu JD, Wada U. Utilization of Instructional Materials for Effective Teaching of Electrical Installation and Maintenance Works Trade in Technical Colleges of Adamawa State. JMC [Internet]. 2022 Nov. 25 [cited 2025 Aug. 21];2(06):11-22. Available from: https://journal.hmjournals.com/index.php/JMC/article/view/1325