Havrylenko, Tetyana. “Development of Primary Education in Ukraine in the Second Half of the XX - Beginning of the XXI Centuries: Historic Base of the Research”. Pedagogical Discourse0, no. 15 (October 10, 2013): 123-128. Accessed February 23, 2024. http://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/683.