Gaya APA
S.Pd., W, .
(2006).
Step By Step To Speak English
(
1)
.
Yogyakarta:
Citra Aji Parama.
Gaya MLA
S.Pd., Walidi, .
"Step By Step To Speak English".
1
Yogyakarta:
Citra Aji Parama,
2006.
BUKU TEKS.