for Junior High School Grade VII 1st Semester text Jakarta Erlangga 2006 ind Sumarwan, Sumartini, Kusmayadi, Sitti Soetarmi (Editor) Ilmu Pengetahuan Alam -- Studi dan Pengajaran 507 507 SUM s 978-979-075-634-2 INLIS000000000000188 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)