Metode fluidisasi untuk mengatasi masalah pendangkalan muara sungai dan alur pelayaran (studi kasus : pengaruh diameter lubang jarak lubang, dan posisi lubang fluidisasi) fludization method for overcoming accretion problem on rever estuary and navigation channel (case study : the effect perforation diameter, perforation distance, and perforation position on the fluidization) Nelly Yulius, Nur Yuwono dan Radianta Triatmadja