text Jakarta Rajawali 1989 viii, 96 p. ; 21 cm SISTEM-TEORI SISTEM 003 003 AMI p 979-421-019-6 240318 20240318102759 INLIS000000000004661 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)