Gaya APA
WALIDI, S. Pd. (2006).
Step by Step to Speak English .
YOGYAKARTA:
PT CITRA PARAMA.
Gaya Chicago
WALIDI, S. Pd.
Step by Step to Speak English.
YOGYAKARTA:
PT CITRA PARAMA,
2006.
Text.
Gaya MLA
WALIDI, S. Pd.
Step by Step to Speak English.
YOGYAKARTA:
PT CITRA PARAMA,
2006.
Text.
Gaya Turabian
WALIDI, S. Pd.
Step by Step to Speak English.
YOGYAKARTA:
PT CITRA PARAMA,
2006.
Print.