Cheng, X. and Tang, J. 2026. Historical Legacies and Political Stability: A Qualitative Comparative Analysis of 27 Former Soviet and Eastern Bloc Countries. Studies in Social Science & Humanities. 5, 2 (Jun. 2026), 31–41. DOI:https://doi.org/10.63593/SSSH.2709-7862.2026.03.005.