Chengquan Sun

Quan qiu bian hua yu ren wen she hui ke xue wen ti

Zhan lüe qing bao yan jiu yu ji shu yu jian

Gansu Sheng sheng tai jian she yu da nong ye ke chi xu fa zhan yan jiu

Guo ji ke xue fa zhan tai shi yu Zhongguo ke xue de ying xiang li