perlawatan studi dan seminar dampak sosial ekonomi usaha konservasi tanah dan air text Ciamis USESE 1986 61 p. : ill ; 29 cm MODEL FARM STUDI IMPAK SOSIAL EKONOMI DAS CITANDUY 631.58 631.58 INLIS000000000001987 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)