Frolenkova, Nadiya. “Evolution of Scientific Methods of Content of Preschool Education: From the Times of the Soviet Union to the Independent Ukraine”. Pedagogical Discourse0, no. 14 (January 24, 2013): 431-435. Accessed April 29, 2024. http://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/517.