Gong, Y. (2004). Where did you go on vacation? In Go For it! (2nd ed.). Beijing: People’s Education Press.
Michael Tomasello (1988). Review of Barry McLaughlin 'Theories of second language learning' Applied Psycholinguistics, 9, pp 106-108. doi:10.1017/S0142716400000503.
Thomson Learning Asia and PEP Press Reaches 50 Million Copy Milestone. (n.d.). Retrieved December 4, 2014, from http://news.cengage.com/corporate/thomson-learning-asia-and-pep-press-reaches- 50-million-copy-milestone/
Wyler, W., Hunter, I. M. L., Dighton, J., Trumbo, D., Peck, G., Hepburn, A., Albert, E., ... Paramount Pictures Corporation. (2002). Roman holiday. Hollywood, Calif: Paramount.
Michael Tomasello (1988). Review of Barry McLaughlin 'Theories of second language learning' Applied Psycholinguistics, 9, pp 106-108. doi:10.1017/S0142716400000503.
Thomson Learning Asia and PEP Press Reaches 50 Million Copy Milestone. (n.d.). Retrieved December 4, 2014, from http://news.cengage.com/corporate/thomson-learning-asia-and-pep-press-reaches- 50-million-copy-milestone/
Wyler, W., Hunter, I. M. L., Dighton, J., Trumbo, D., Peck, G., Hepburn, A., Albert, E., ... Paramount Pictures Corporation. (2002). Roman holiday. Hollywood, Calif: Paramount.