2 1 20 Lapisan Tanah dan Lingkungan Purba Sangiran Iwan SB Primary Author Suwita Nugraha Primary Author Wulandari Primary Author mixed material 9786029525540 Sragen Balai Pelestarian Situs Manusia Purba Sangiran 2013 Sangiran Situs Prasejarah Dunia Harry Widianto Primary Author Iwan SB Primary Author mixed material 9786029525526 Sragen Blai Pelestarian Situs Manusia Purba Sangiran 2012