Gaya APA
Djamawir, . (1986).
16 Tenses: positive, negative, interrogative, negative interrogative (Pertama, Cet.2).
Jakarta:
Pustaka Dian.
Gaya MLA
Djamawir, .
"16 Tenses: positive, negative, interrogative, negative interrogative".
Pertama, Cet.2
Jakarta:
Pustaka Dian,
1986.
Text.