BARKER, Thomas W.; O’BRIEN, Joseph. Are We Prepared?: Primary Sources in State World History Standards and the Common Core State Standards Initiative. World History Connected, [S. l.], v. 11, n. 3, 2014. DOI: 10.13021/whc.v11i3.4494. Disponível em: https://journals.gmu.edu/whc/article/view/4494. Acesso em: 20 apr. 2025.