Gaya APA
Azar, B, S., Hartle, S. (2008).
Fundamentals of english grammar (3 th Ed.).
Hoboken, NJ:
Pearson education.
Gaya MLA
Azar, Betty, Schrampfer., Hartle, Shelly.
"Fundamentals of english grammar".
3 th Ed.
Hoboken, NJ:
Pearson education,
2008.
Text.