KALE, M. Examining school variables affecting PISA 2012 math achievement in Turkey and Shanghai-China. Contemporary Educational Researches Journal, [S. l.], v. 6, n. 4, p. 167–174, 2017. DOI: 10.18844/cerj.v6i4.586. Disponível em: https://un-pub.eu/ojs/index.php/cerj/article/view/586. Acesso em: 6 may. 2024.