ERDEM, A. R. Opinions of primary and secondary school teachers on economical problems and their effects on performance. Journal of Human Sciences, [S. l.], v. 7, n. 1, p. 270–287, 2010. Disponível em: https://j-humansciences.com/ojs/index.php/IJHS/article/view/904. Acesso em: 22 dec. 2024.