na INLIS000000000014851 20151118211230 190715||||||||| | ||| |||| ||eng|| 0-395-30769-4 0010-111500000014770 eng 372 372 WEL c Welton, David A. Children and their world : strategies for teaching social studies Boston Houghton Mifflin Company 1981 xv,492 hlm. : ilus., foto ; 23 cm. Perpus Mastrip 2004 PENDIDIKAN DASAR 91934