Tri Yulianto text Semarang Bengawan Ilmu 2009 44 hlm. ; 25 cm. GEOMETRI BIDANG LINGKARAN 516.22 516.22 TRI a 9789790214781 20240110093241 INLIS000000000533837 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)