text Bandung Nuansa 2011 Cet. 1 ind 160 hlm ilus 20 cm Rika Widya Sukmana, Ahny Muljatiningrum Biogas 665.7 978-602-8394-15-4 YOPDYOG 20110610131633.0 YOGYA-06110000000231 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)