Gaya APA
AZAR, B, S. (1992).
Fundamentals of English grammar (2nd ed.).
Englewood Cliffs, New Jersey:
Prentice Hall Regens.
Gaya MLA
AZAR, Betty, Schrampfer.
"Fundamentals of English grammar".
2nd ed.
Englewood Cliffs, New Jersey:
Prentice Hall Regens,
1992.
Buku.