Gaya APA
Walidi, S.Pd.. (2007).
Step by Step to Speak English .
Yogyakarta:
Citra Aji Parama.
Gaya Chicago
Walidi, S.Pd..
Step by Step to Speak English.
Yogyakarta:
Citra Aji Parama,
2007.
Text.
Gaya MLA
Walidi, S.Pd..
Step by Step to Speak English.
Yogyakarta:
Citra Aji Parama,
2007.
Text.
Gaya Turabian
Walidi, S.Pd..
Step by Step to Speak English.
Yogyakarta:
Citra Aji Parama,
2007.
Print.