Insigtht KSN (Kompetisi Sains Nasional) IPS SMP text Jakarta Grasindo 2021 247 hlm 327.71 327.71 Ais I 240821 20240821025539 INLIS000000000000536 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)