Gaya APA
Isnuwati, . et al
(2007).
Multi-Purpose English Intermediate Grade XII
.
Klaten:
Saka Mitra Kompetensi.
Gaya MLA
Isnuwati, . et al.
"Multi-Purpose English Intermediate Grade XII".
Klaten:
Saka Mitra Kompetensi,
2007.
Text.