Yang, Songcai

• "Jing ji, she hui he wen hua quan li guo ji gong yue" ruo gan wen ti yan jiu
• Guo ji fa shi ye xia de fan fu bai yu ren quan bao zhang
• Guo ji mao yi zhong de lao gong quan li bao zhang yan jiu
• Xing shi si fa gong zheng yu ren quan bao zhang