text Jakarta Balai Pustaka 2000 Cetakan : 2 ind 64 hlm. : ilus. ;28 cm. Ruang Waktu Iptek 539.7 20130516015052 INLIS000000000014934 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)