Gaya APA

dkk, U, P. (2015). Profile Yogyakarta City of Philosophy . Yogyakarta: Dinas Kebudayaan DIY.

Gaya MLA

dkk, Umar, Priyono,. "Profile Yogyakarta City of Philosophy". Yogyakarta: Dinas Kebudayaan DIY, 2015. Text.