00557     2200217   4500001002100000005001700021008004100038035002400079090001700103100001700120245004300137250001100180260003300191300002400224500003100248650000900279850001500288980001500303985000600318999001500324YOGYA-0209000000178520090227020455.0                                   ind    0010-020900000001785  a371.1bDal G  aDaldjoeni, N  aGuru dan tantangan sekitarcN. Daljuni  aCet. 1  aSemarangbSatya Wacanac1979  avii, 139 hlmc21 cm  aBibliografi : hlm. 134-139  aGuru  aYOPDYOG(B)  a09-26-2005  a1  aP000016443