Sumarwan, Sumartini Kusmayadi text Jakarta Erlangga 2003 ind 110 hlm. ; 25 cm. Pendidikan Dasar Biologi 574.07 574.07 SUM i 979-688-665-0 220112 20220112024634 INLIS000000000006267 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)