Lesnyak, V. “Interaction Between Third Sektor and Public Administration in Regulation of Social Problems in Contemporary Poland”. Visnyk of V. N. Karazin Kharkiv National University. Series Sociological Studies of Contemporary Society: Methodology, Theory, Methods, Vol. 39, Feb. 2018, pp. 183-7, https://periodicals.karazin.ua/ssms/article/view/10194.