Farry B. Paimin text Jakarta Penebr swadaya 1997 cet.1 id vi,50hlm.;ilus.:21cm Biogas 662.767.2 979-489-395-1 210427 20210427141316 INLIS000000000000561 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)