APA Style
Riyanto,Slamet. (2009).
Gateway : English for Active Communication / Slamet Riyanto (Cet.VI).
Yogyakarta:
Pustaka Pelajar.
Chicago Style
Riyanto,Slamet.
Gateway : English for Active Communication / Slamet Riyanto.
Cet.VI
Yogyakarta:
Pustaka Pelajar,
2009.
Text.
MLA Style
Riyanto,Slamet.
Gateway : English for Active Communication / Slamet Riyanto.
Cet.VI
Yogyakarta:
Pustaka Pelajar,
2009.
Text.
Turabian Style
Riyanto,Slamet.
Gateway : English for Active Communication / Slamet Riyanto.
Cet.VI
Yogyakarta:
Pustaka Pelajar,
2009.
Print.