text Jakarta Bhratara Karya Aksara 1981 Cet. 1 vii, 167 hlm. ilus. 21 cm. Nasoetion, Andi Hakim Aljabar Matrik 20150311101119.0 YOGYA000000000041954 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)