1. Beijing Planning Office of Philosophy and Social Sciences. 2003. “Yi EDP wei hexin zhibiao de guomin jingji hesuan tiji yanjiu”[A GDP study using EDP as the core indicator]”. http://www.bjpopss.gov.cn/xxgl/xmk/23.htm, 24 December (downloaded 15 October 2007)
2. CAEP. 2007. “Zhu Zhixin: Luse GDP shizaibixin dan shang xu shijian” [Green GDP is an imperative but it would take time]”. http://www.caep.org.cn/ReadNews.asp?NewsID=1178, 19 October (downloaded 15 November 2007)