SUN, Y.; STROBEL, J. From Knowing-About To Knowing-To: Development Of Engineering Pedagogical Content Knowledge By Elementary Teachers Through Perceived Learning And Implementing Difficulties. American Journal of Engineering Education (AJEE), [S. l.], v. 5, n. 1, p. 41–60, 2014. DOI: 10.19030/ajee.v5i1.8610. Disponível em: https://clutejournals.com/index.php/AJEE/article/view/8610. Acesso em: 18 jul. 2024.