AZI, A.; DAJAN, H. Effects of Using Instructional Materials on the Academic Performance of Secondary School Students’ in Economics in Jos-North Local Government Area of Plateau State. Kashere Journal of Education, [S. l.], v. 3, n. 1, p. 1–7, 2022. DOI: 10.4314/kje.v3i1.1. Disponível em: https://www.ajol.info/index.php/kje/article/view/226635. Acesso em: 10 oct. 2026.