Setiyono, J., Diniarsih, S., Mufti, F. and Unting, M. 2013. Large Communal Roost of “Wintering” Purple-backed Starlings <em>Sturnus (Agropsar) sturninus</em&gt; in Yogyakarta, Central Java. KUKILA. 17, 1 (Aug. 2013), 12-16.