PENGEMBANGAN MODUL IPA TERPADU KONTEKSTUAL PADA TEMA BUNYI - Asfiah, Nailin; Mosik, Mosik; Purwantoyo, Eling (Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia, 2013)