$1!5A!U{'Q;'QM!0=!Zes - $1'=G'_Ts ($1!4c!0a!<D (B: s $1!Fd'V<!0d!FM!3K!JH!Na(B,s, 2017)
Keywords: Civilization; Qinghai Sheng (China) -- Civilization; Tibet Autonomous Region (China) -- Civilization