Gaya APA
Azar, Betty Schrampfer. (1993).
Understanding And Using English Grammar : Betty Schrampfer Azar (Ed.2, Cet.1).
Jakarta:
Bina Rupa Aksara.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding And Using English Grammar : Betty Schrampfer Azar.
Ed.2, Cet.1
Jakarta:
Bina Rupa Aksara,
1993.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Understanding And Using English Grammar : Betty Schrampfer Azar.
Ed.2, Cet.1
Jakarta:
Bina Rupa Aksara,
1993.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding And Using English Grammar : Betty Schrampfer Azar.
Ed.2, Cet.1
Jakarta:
Bina Rupa Aksara,
1993.
Buku.