Tolong jelaskan mengenai Bacaan tambahan dari Perluasan NATO

Sergey Radchenko (2020) "‘Nothing but humiliation for Russia’: Moscow and NATO’s eastern enlargement, 1993-1995." Journal of Strategic Studies.

Spohr, Kristina. "Precluded or precedent-setting? The 'NATO enlargement question' in the triangular Bonn-Washington-Moscow diplomacy of 1990–1991." Journal of Cold War Studies 14.4 (2012): 4-54. online