APA (7th ed.) Citation

Sudarwati, T. M. (2007). Look Ahead 1 An English Course for High School Students Year X. Erlangga.

Chicago Style (17th ed.) Citation

Sudarwati, Th. M. Look Ahead 1 An English Course for High School Students Year X. Erlangga, 2007.

MLA (8th ed.) Citation

Sudarwati, Th. M. Look Ahead 1 An English Course for High School Students Year X. Erlangga, 2007.

Warning: These citations may not always be 100% accurate.