Gaya APA

Effective English For Grade VII of Junior High Schools. (2005). Solo: Tiga Serangkai.

Gaya Chicago

Effective English For Grade VII of Junior High Schools. 2005. Solo: Tiga Serangkai, 2005. Text.

Gaya MLA

Effective English For Grade VII of Junior High Schools. 2005. Solo: Tiga Serangkai, 2005. Text.

Gaya Turabian

Effective English For Grade VII of Junior High Schools. Solo: Tiga Serangkai, 2005. Print.