Azar, B. S. (2003). Fundamentals of english grammar: With answer key (3rd ed.). Longman.
Chicago Style (17. basım) AtıfAzar, Betty Schrampfer. Fundamentals of English Grammar: With Answer Key. 3rd ed. White Plains: Longman, 2003.
MLA (9th ed.) AtıfAzar, Betty Schrampfer. Fundamentals of English Grammar: With Answer Key. 3rd ed. Longman, 2003.
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