Gaya APA
Azar, B, S., Budijanto, . (1993).
Understanding and using english grammar (Ed. 2).
Jakarta:
Binarupa Aksara.
Gaya MLA
Azar, Betty, Schrampfer., Budijanto, .
"Understanding and using english grammar".
Ed. 2
Jakarta:
Binarupa Aksara,
1993.
Buku Tercetak.