Kemaknitan text Jakarta Mutiara 1979 32 hlm. ilus. 21 cm. Ali Marsaban Ilmu pengetahuan alam 537.3 K 537.3 Kem YOPDYOG 20170117094703.0 YOGYA000000000098358 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)