Oliynyk, Valentyna. “Schoolʼs Holiday As Means of Upbringing of Pupils in the Secondary School of Ukraine (Second Half of XIX Century – 20th of XX Century): Historiography and Sources of Research”. Pedagogical Discourse0, no. 15 (October 9, 2013): 500-507. Accessed March 28, 2024. https://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/844.