Sự sụp đổ của Liên Xô - Nguyên nhân trực tiếp và bài học rút ra

Abstract After more than seven decades of existence and development, at the end of 1991, the Soviet Union officially collapsed. Such a collapse of the Soviet Union created the biggest k n e n e en n n ern n w rker w e direct cause of the collapse of the Soviet Union and what lesson should be learned for the socialist countries today, including Viet Nam.