MOHAMMED, T. Effects of Educational Supervision on Students’Academic Performance in Nadowli District in the Upper West Region of Ghana. The International Journal of Humanities & Social Studies, [S. l.], v. 2, n. 6, 2014. Disponível em: https://internationaljournalcorner.com/index.php/theijhss/article/view/140397. Acesso em: 23 jul. 2024.