text Yogyakarta Gajah Mada University Press 1995 Cet. 2 ind 132 hlm ilus 21 cm Mokhamad Yunus Bibliografi : hlm. 121 - 122 Biogas 665.776 979-420-342-4 20090227024441.0 YOGYA-02090000030104 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)