1 1 30 Rozi, Syafuan Primary Author Yustiningrum, RR Emilia Primary Author Alami, Athiqah Nur Primary Author Sinaga, Lidya Christin Primary Author Andriana, Nina Primary Author Haripin, Muhammad Primary Author mixed material 9786022625582 YOGYAKARTA Graha Ilmu 2016 Memahami_Erupsi_Merapi_%3B_Kebijakan_dan_implementasi.jpg.jpg