Gaya APA
Sudarwati, . (2005).
Lokk Ahead : An English Course for Senior High School Students Year X (cetakan ke-1).
Jakarta:
Erlangga.
Gaya MLA
Sudarwati, .
"Lokk Ahead : An English Course for Senior High School Students Year X".
cetakan ke-1
Jakarta:
Erlangga,
2005.
Text.