Risalah hasil penelitian pengelolaan produktifitas lahan pasca letusan gunung kelud text Malang Balittan Malang 1991 ind 95 hlm. 0,4 cm A - Agriculture/Pertanian 633.152 BAL r 0853-1420 INLIS000000000001525 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)