Non-Book Instructional Materials Usage in Ghanaian Primary Schools. Journal of Science and Technology, [S. l.], v. 24, n. 2, 2016. DOI: 10.4314/just.v24i2.772. Disponível em: https://journal.knust.edu.gh/index.php/just/article/view/772. Acesso em: 11 jun. 2026.