na INLIS000000000001876 0010-0121000242 Penelitian evaluatif impak sosial ekonomi model farm di wilayah DAS Citanduy Husni Thamrin kalo Ciamis USESE 1986 xiii, 136 p. ill ; 30 cm 631.45 631.45 MODEL FARM SOSIAL EKONOMI DAS CITANDUY LAHAN KERING EROSI. 2906 2906 2906