Gaya APA
Riyanto, Slamet. (2010).
Developing Vocabulary Skill .
Yogyakarta:
Pustaka Pelajar.
Gaya Chicago
Riyanto, Slamet.
Developing Vocabulary Skill.
Yogyakarta:
Pustaka Pelajar,
2010.
Text.
Gaya MLA
Riyanto, Slamet.
Developing Vocabulary Skill.
Yogyakarta:
Pustaka Pelajar,
2010.
Text.
Gaya Turabian
Riyanto, Slamet.
Developing Vocabulary Skill.
Yogyakarta:
Pustaka Pelajar,
2010.
Print.