Effects of Multimedia Video Projection on Undergraduate Students’ Achievement and Retention in Quantitative Economics in the Universities in Gombe State, Nigeria . Kashere Journal of Education, [S. l.], v. 2, n. 2, p. 259–266, 2021. Disponível em: https://kasherejournalofeducation.org/index.php/kje/article/view/72. Acesso em: 28 oct. 2026.