na INLIS000000000003183 0010-0121001549 Agricultural intensification and technological change smallholder coffee in highland Sumatera Thomas P. Tomich, Hastuti and Christopher P.A. Bennett Jakarta Center for Policy and Implementation Studies 1992 iv, 43 p. ill; 30 cm 633.73 633.73 COFFEE INTENSIFICATION TECHNOLOGICAL CHANGES SUMATRA. 4424 4424