Oguejiofor VI, Ezeama AO, Kalu UO. EFFECTIVE USE OF INSTRUCTIONAL MATERIALS IN TEACHING AND LEARNING OF TECHNICAL DRAWING IN TECHNICAL COLLEGES IN AWGU L.G.ANJ. BIJESS [Internet]. 2020 Jan. 12 [cited 2026 Apr. 17];7(1):10-9. Available from: https://cirdjournals.com/index.php/bijess/article/view/1162