APA Style

Bangun & Gembira. (2007). : .

Chicago Style

Bangun & Gembira. . : , 2007. Book - Paperback.

MLA Style

Bangun & Gembira. . : , 2007. Book - Paperback.

Turabian Style

Bangun & Gembira. : , 2007. Book - Paperback.