Evaluation of Availability and Adequacy of Instructional Materials for Economics Teaching and Learning among Secondary Schools in North West, Nigeria. Federal University Gusau Faculty of Education Journal, [S. l.], v. 5, n. 6, p. 148–157, 2026. DOI: 10.64348/zije.2025234. Disponível em: https://js.foefugusau.com.ng/index.php/foefujs/article/view/234. Acesso em: 2 mar. 2026.