Davydiuk, V. M. “Legal and Moral Aspects of Confidential Cooperation Between Individuals and Law Enforcement Agencies”. Bulletin of Kharkiv National University of Internal Affairs 86, no. 3 (September 24, 2019): 69-79. Accessed November 23, 2024. https://visnyk.univd.edu.ua/index.php/VNUAF/article/view/236.