Pola wilayah bahaya likuifaksi di Provinsi D.I. Yogyakarta (Studi kasus gempa bumi Yogyakarta 27 Mei 2006) = Spatial pattern of liquefaction severity in Yogyakarta Special Province (Case study: the Yogyakarta earthquake of May 27, 2006) - Robiatul Adawiyah, author (2008)