González Delgado, M. (2013). A Historiographical Approach on the Origin of the Studies of "black box" of Schooling: Investigations of the Classroom From the History of Education in Britain and U.S. Profesorado, Revista De Currículum Y Formación Del Profesorado, 17(3), 389–408. Recuperado a partir de https://revistaseug.ugr.es/index.php/profesorado/article/view/19710