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baiyin (gansu sheng china)

Gansu Sheng Baiyin Shi 2000 nian ren kou pu cha zi liao

By Baiyin Shi di 5 ci ren kou pu cha ban gong shi

Baiyin Shi Pingchuan Qu zhi

By

Zhongguo gong chan dang Gansu Sheng Baiyin Shi zu zhi shi zi liao

By Zhong gong Baiyin Shi wei. Zu zhi bu

Pingchuan shi hua

By Xiangling Li,Chen Yonghong