00675 2200229 4500001002100000005001500021035002000036007000300056008004100059082001600100084002200116100001700138245011400155260004100269300002800310650001100338650001800349650002600367700001800393700002100411990001300432INLIS00000000006188420231124121636 a0010-1123000248ta231124 g 0 ind  a551.482.214 a551.482.214 ABB k1 aABBAS, Idrus1 aKualitas air sungai di Kodya Padang ditinjau dari segi biologis /cIdrus Abbas, Rustam Usman, Dorlan Rangkuti aPadang :bUniversitas Andalas,c1981 a27 p. :bill. ;c28 cm. 4aRIVERS 4aWATER QUALITY 4aBIOLOGICAL PROPERTIES1 aUSMAN, Rustam1 aRANGKUTI, Dorlan a891/D/88