1 Harmer, J, "The practice of English language teaching" Essex: Pearson Education Limited 2001
2 Jespersen, O, "The philosophy of grammar" 1924
3 Brown, D, "Teaching by Principles: An Interactive Approach to Language Pedagogy, Second Edition" White Plains, NY: Longman 2001
4 Lakoff, G, "Philosophy in the Flesh: The embodied mind and its challenge to western thought" New York: Basic Books 1999
5 Procter, P, "Longman Dictionary of Contemporary English" 1978
6 Asher, J, "Learning another language through action: The complete teacher′s guidebook" 1977
7 Spada, N, "Instruction and the development of questions in the L2 classroom" 1993
8 Hwang, Jong-Bai, "How to apply focus-on-form techniques to Korean EFL classroom" 11 (11): 85-101, 2004
9 Hornby, A. S, "Guide to patterns and usage in English" 1974
10 Walter, P., D, "Experiences in language: Tools and techniques for language arts" 1981
1 Harmer, J, "The practice of English language teaching" Essex: Pearson Education Limited 2001
2 Jespersen, O, "The philosophy of grammar" 1924
3 Brown, D, "Teaching by Principles: An Interactive Approach to Language Pedagogy, Second Edition" White Plains, NY: Longman 2001
4 Lakoff, G, "Philosophy in the Flesh: The embodied mind and its challenge to western thought" New York: Basic Books 1999
5 Procter, P, "Longman Dictionary of Contemporary English" 1978
6 Asher, J, "Learning another language through action: The complete teacher′s guidebook" 1977
7 Spada, N, "Instruction and the development of questions in the L2 classroom" 1993
8 Hwang, Jong-Bai, "How to apply focus-on-form techniques to Korean EFL classroom" 11 (11): 85-101, 2004
9 Hornby, A. S, "Guide to patterns and usage in English" 1974
10 Walter, P., D, "Experiences in language: Tools and techniques for language arts" 1981
11 Reichenbach, H, "Elements of symbolic logic" 1947
12 Bursen, H, "Dismantling the Memory Machine: A Philosophical Investigation of Machine Theories of" 1899
13 Lee, Ki-Dong, "An English grammar on verbs" 1971
14 Chung, Seung-Young, "An Analysis of English writing errors" 8 (8): 170-184, 1998