Gaya APA

Samudra. (2010). : Erlangga.

Gaya Chicago

Samudra. . : Erlangga, 2010. Teacher Resource.

Gaya MLA

Samudra. . : Erlangga, 2010. Teacher Resource.

Gaya Turabian

Samudra. : Erlangga, 2010. Teacher Resource.