text Jakarta Erlangga 1997 Cet 4 xiv + 112 hlm ; 22 cm ; Il Ilmu Pengetahuan Alam 979-411-828-1 20150611113820.0 INLIS000000000023933 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)