1. Ministry of Education China, Annual Educational Statistics 2006, People’s Education Press, Beijing, 2006.
2. Emerging technologies bots as language learning tools;Fryer;Language Learning and Technology,2006
3. J. Jia, CSIEC (Computer Simulator in Educational Communication): A virtual context-adaptive chatting partner for foreign language learners, in: Kinshuk et al. (Eds.), Proceedings of International Conference of Advanced Learning Technology 2004, IEEE Press, 2004, pp. 690–692.
4. Exploring CSIEC’s application in teaching and learning of oral English: design-based research approach;Chen,2007
5. The application of CSIEC in English instruction in high school: design based research;Chen;China Educational Technology,2008