RANCANG BANGUN SISTEM PERPIPAAN DAN PENGUJIAN KARAKTERISTIK POMPA SENTRIFUGAL SUSUNAN PARALEL ANTARA IDB-45 DENGAN IDB-35 ( PIPING SYSTEM DESIGN AND TESTING CHARACTERISTICS OF CENTRIFUGAL PUMPS IN PARALLEL COMPOSITION BETWEEN IDB AND IDB-45-35 ) - Dwi, Hariyanto (2010)