Dongping Zhang

Nong ye xian dai hua

Liang shi an quan yu zhu chan qu nong min zeng shou wen ti

yun nan bod kyi shes rig zhib 'jug ched rtsom phyogs bsgrigs

Nong ye bu tie zheng ce xiao ying ji zuo yong ji li yan jiu

騰冲县建设志

Jin dai Zhongguo jian yu de gan hua jiao yu yan jiu

中国农业技术经济学敎程

Xian dai nong ye fa zhan yan jiu