text Padang PT Andalas Unggul Konsultan 1993 ix, 81 p. : ill ; 30 cm USAHATANI - LINGKUNGAN - LAHAN MARGINAL LAHAN MARGINAL PEL.631.92 PEL.631.92 INLIS000000000001364 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)