text Jakarta Sinar Harapan 1987 Cet. 2 ind 300 hlm ilus 21 cm Mubayrto Bibliografi : hlm. 300 Pertanian dan negara 20090227023807.0 YOGYA-02090000023649 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)