A Comparative Analysis of Quadratics Unit in Singaporean, Turkish and IBDP Mathematics Textbooks . Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 3, n. 3, p. 131–147, 2013. Disponível em: http://www.turcomat.org/index.php/turkbilmat/article/view/43. Acesso em: 5 jun. 2026.