Dang dai jing ji xue wen ku Dang dai jing ji xue yi ku Zhang an jing ji fa xue wen ku dang dai jing ji xue/. xia ce. Xin shi ji jing ji xue wen ku Ji nan da xue jing ji xue wen ku dang dai jing ji xue/. shang ce. Bei jing da xue zong jiao xue wen ku Chan ye jing ji xue bo shi wen ku Zhong qing nian jing ji xue jia wen ku