Gaya APA
Walidi, S.
(2006).
Step by Step to Speak English
(
Cet. I)
.
Klaten:
Citra Aji Parama.
Gaya MLA
Walidi, S.Pd.
"Step by Step to Speak English".
Cet. I
Klaten:
Citra Aji Parama,
2006.
Text.