Osadcha, Kateryna. “Key Aspects of the State Policy of the USA Concerning Tutoring As an Industry of Supplementary Educational Services”. Pedagogical Discourse0, no. 21 (November 6, 2016): 127-132. Accessed May 8, 2024. http://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/148.