Oliynyk V. 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. PD [Internet]. 2013Oct.9 [cited 2026Jan.21];0(15). Available from: https://ojs.kgpa.org.ua/index.php/peddiscourse/article/view/844