Soeratno text Jakarta Universitas Terbuka 1987 Cet.1 ind 25 hlm. : ilus. ; 30 cm Soeratno Ekonomi Pertanian 338.1 338.1 Soe e 240807 20240807101512 INLIS000000000006094 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)