na INLIS000000000004281 20150116141137.0 a ||| | 170609| ||| | $a 978-979-497-328-8 $a 0010-011500000002285 $a 20.19000000000005 $a H Rahmat rukmana $a Teknik pengelolaan lahan berbukit dan kritis $a Yogyakarta $b kanisius $c 1995 $a 0717/b/kpad/2009