Gaya APA
Riyanto. (2011).
Daily english words .
Jakarta:
Pustaka Widyatama.
Gaya Chicago
Riyanto.
Daily english words.
Jakarta:
Pustaka Widyatama,
2011.
Text.
Gaya MLA
Riyanto.
Daily english words.
Jakarta:
Pustaka Widyatama,
2011.
Text.
Gaya Turabian
Riyanto.
Daily english words.
Jakarta:
Pustaka Widyatama,
2011.
Print.