Gaya APA
Purwati, M.
(2007).
Multi-Purpose English for Vocational X
.
Klaten:
Saka Mitra Kompetensi.
Gaya MLA
Purwati, M..
"Multi-Purpose English for Vocational X".
Klaten:
Saka Mitra Kompetensi,
2007.
Text.