Gaya APA
Sunarmi, Y, I.
(2006).
Step By Step to Speak English
(
Pertama)
.
Jakarta:
PT Citra Aji Parama.
Gaya MLA
Sunarmi, Yohana, Ipuk.
"Step By Step to Speak English".
Pertama
Jakarta:
PT Citra Aji Parama,
2006.
Text.