Teachersa Qualification And Subject Mastery As Predictors Of Achievement In English Language In Ibarapapa Division Of Oyo State. Global Journal of Human-Social Science, [S. l.], v. 12, n. A3, p. 1–6, 2012. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/100141. Acesso em: 5 feb. 2026.