Panasenko, Ellina. “An Experiment in the History of Domestic Pedagogical Science and Practice of the Soviet Period: To the Question of Systematization of the Sources of the Research”. Pedagogical Discourse0, no. 15 (October 10, 2013): 525-531. Accessed April 24, 2024. http://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/848.