?url_ver=Z39.88-2004&rft_id=978-602-74934-3-8&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Susapti%2C+Peni&rft.aulast=Susapti&rft.aufirst=Peni&rft.date=22+November+2016&rft.isbn=978-602-74934-3-8&rft.title=THE+ANALYSIS+OF+THE+OBSTACLE+FOUND+IN+NATURAL+SCIENCES+(IPA)+LEARNING+PROCESS+AND+THE+SOLUTION+FOR+TEACHER%E2%80%99S+CLASS+AT+SIXTH+GRADE+OF+ISLAMIC+ELEMENTARY+SCHOOLS+IN+SALATIGA&rft.btitle=PROCEEDING+THE+3rd+SUMMIT+MEETING+ON+EDUCATION+INTERNATIONAL+SEMINAR+%E2%80%9CValues+%E2%80%93+Based+Learning+for+Wonderful+Children%E2%80%9D&rft.tpages=242&rft.genre=bookitem