Gaya APA

Sudarwati, M. (2005). Look Ahead 1 An English Course for Senior High School Studets Year X (Cet 1). Jakarta: Erlangga.

Gaya MLA

Sudarwati, M.. "Look Ahead 1 An English Course for Senior High School Studets Year X". Cet 1 Jakarta: Erlangga, 2005. Text.