Nong ye jing ji- tong ji xue Nong ye jing ji- jing ji xue Shang ye jing ji- jing ji xue Jiao yu tong ji- tong ji xue Gong ye jing ji guan li xue/ Gong ye jing ji- ji shu jing ji xue Wai xiang xing jing ji- tong ji xue Gong ye ji shu jing ji xue/ Nong ye- sheng tai jing ji xue Wei sheng tong ji- tong ji xue