PRA Study kelayakan persawahan daerah irigasi Mardinding Laporan Penunjang text Medan CV. Setia Konsultan 1993 i, 139 p. ill ; 30 cm IRIGASI PRA FEASIBILITY STUDY SUMATERA UTARA NORTH SUMATERA STUDI KELAYAKAN 631.67 631.67 INLIS000000000002254 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)