The Availability of Teaching Materials alone in Tropical African Government-Aided Primary Schools has not Yet Facilitated Teacher Instructional Effectiveness. Global Journal of Human-Social Science, [S. l.], v. 21, n. G3, p. 19–22, 2021. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/3567. Acesso em: 2 sep. 2026.