Zuo ye yan jiu=: Guan li shu xue/ Jue ce yan jiu yu ruan ke xue/ Gao ji yi yuan guan li xue/ Gong ye jing ji guan li xue/ Qi ye jing ying guan li xue/ Yi yuan guan li shu xi Qi ye jia zhi guan li xue/ Zhong guo guan li zhe xue/ Zhong guo ren de guan li zhe xue/ Tu jie guan li xue/