GYASI, W. K. Impact of Effective Communication by Teachers and Mathematics Education in Ghanaian Senior High Schools. Asian Journal of Humanities and Social Studies, [S. l.], v. 1, n. 1, 2013. Disponível em: https://ajouronline.com/index.php/AJHSS/article/view/65. Acesso em: 25 apr. 2024.