Gaya APA
Th.M.Sudarwati, . (2007).
Look Ahead An English Course For Senior High School Year x Ktsp Standar isi 2006 .
Jakarta:
Erlangga.
Gaya MLA
Th.M.Sudarwati, .
"Look Ahead An English Course For Senior High School Year x Ktsp Standar isi 2006".
Jakarta:
Erlangga,
2007.
Book.