Gaya APA
Riyanto, S. (2008).
Seribu Selected Adjectives, Adverbs, Prepositions Used In Speaking English .
Yogakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"Seribu Selected Adjectives, Adverbs, Prepositions Used In Speaking English".
Yogakarta:
Pustaka Pelajar,
2008.
Text.