Gaya APA
Djamawir, . (1996).
16 Tenses : Positive , Negatif , Interogative, Negative Interogative (cet. 1).
Jakarta:
Pustaka Dian.
Gaya MLA
Djamawir, .
"16 Tenses : Positive , Negatif , Interogative, Negative Interogative".
cet. 1
Jakarta:
Pustaka Dian,
1996.
Text.