Gaya APA
RIYANTO, Slamet. (2012).
Speaking English is easy .
:
Pustaka Widyatama.
Gaya Chicago
RIYANTO, Slamet.
Speaking English is easy.
:
Pustaka Widyatama,
2012.
Text.
Gaya MLA
RIYANTO, Slamet.
Speaking English is easy.
:
Pustaka Widyatama,
2012.
Text.
Gaya Turabian
RIYANTO, Slamet.
Speaking English is easy.
:
Pustaka Widyatama,
2012.
Print.