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Gaya APA
Soewarno, .(1991).Hidrologi Pengukuran Dan Pengelolaan Data Aliran Sungai(Hidrometri) .Indonesia:Penerbit Nova.
Gaya MLA
Soewarno, ."Hidrologi Pengukuran Dan Pengelolaan Data Aliran Sungai(Hidrometri)".Indonesia:Penerbit Nova,1991.Text.