Gaya APA
Azar, B, S., Budijanto, .
().
Fundamentals of English grammar
(
Ed. 2)
.
Jakarta:
Karisma Inti Ilmu.
Gaya MLA
Azar, Betty, Schrampfer., Budijanto, .
"Fundamentals of English grammar".
Ed. 2
Jakarta:
Karisma Inti Ilmu,
.
Text.