Gaya APA

Sudarwati, M. (2007). Look Ahead 2 An English Course for Senior High School Studets Year XI : Science and Social Study Program (Cet 1). Jakarta: Erlangga.

Gaya MLA

Sudarwati, M.. "Look Ahead 2 An English Course for Senior High School Studets Year XI : Science and Social Study Program". Cet 1 Jakarta: Erlangga, 2007. Text.