1Ferris, D. & J. Hedgcock. 1998. Teaching ESL Composition: Purpose, Process, and Practice [M]. London: Lawrence Erlbaum.
2Grabe, W. & R. B. Kaplan. 1996. Theory and Practice of Writing [M]. London: Longman.
3Grabe, W. 2001. Reading-writing relations: Theoretical perspectives and instructional practices [A]. In Belcher, D. & A. Hirvela (Eds.). Linking Literacies: Perspectives Connections [C]. Ann Michigan Press, 15-47 on L2 Reading-writing Arbor: University of.
4Hirvela, A. 2007. Connecting Reading and Writing in Second Language Writing Instruction [M]. Ann Arbor: The University of Michigan Press.
5Krashen, S. D. 1980. The input hypothesis [A]. In J. E. Alafts (Ed.). Current lssues in Bilingual Education [C]. Washington, DC.: Georgetown University Round Table on Languages and Linguistics, 168-180.
6Krashen, S. D. 1982. Principles and Practice in Second Language Acquisition [M]. Oxford: Pergamon.
7Krashen, S. D. 1984. Writing [M]. Oxford: Pergamon.
8Krashen. S. D. 1989. We acquire vocabulary and spelling by reading additional evidence for the input hypothesis [J]. Modern Language Journal (73): 440-464.
9Larsen-Freeman, D. & M. Long. 1991. An Introduction to Second Language Acquisition Research [M]. London: Longman.
10Smoke, T. 1994. Writing as a means of learning [J]. College ESL, (4): 1-11.