Gaya APA

Meka, R, R. (2009). Predicting the Trend of Indonesian : Progressive Music Idioms Froms 2005 to 2015 . Yogyakarta: Graduate School Gadjah Mada University.

Gaya MLA

Meka, Roby, Regenald. "Predicting the Trend of Indonesian : Progressive Music Idioms Froms 2005 to 2015". Yogyakarta: Graduate School Gadjah Mada University, 2009. BUKU.