Zhonghua Minguo ba shi jiu nian Taiwan di qu shao nian ji er tong fei xing shi jian diao cha bao gao - China (Republic : 1949- ). Si fa yuan. Tong ji chu (Si fa yuan tong ji chu, 2001)
"Zi liao diao cha shi qi: 89 nian 1 yue zhi 3 yue ji 7 yue zhi 9 yue"