?url_ver=Z39.88-2004&rft_id=10.1201%2Fb21942-44&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=L.-P.&rft.aulast=Wong&rft.au=Wong%2C+L.-P.&rft.title=Use+of+low+frequency+ultrasound+for+solids+solubilization+in+palm+oil+mill+effluent&rft.date=2016&rft.isbn=9781138029781&rft.genre=proceeding