Sudarmo,Subiyakto text Semarang Itspress 1990 cet.1 ind id 81 p.; fig., bibl.; 21 cm. 632 632 SUD t 979-413-332-9 230119 20230119102828 INLIS000000000002001 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)