Levchuk, Kostiantyn. “The Crisis and Decay of the CPSU-CPU in 1986-1991”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 29 (September 2, 2019): 43–47. Accessed May 2, 2024. https://vspu.net/nzhist/index.php/nzhist/article/view/596.