Hasnain,Ghalib Performance Evaluation Of An Up-flow Roughing Filter For Treatment Of High Turbidity Water At Chakwal Ghalib Hasnain - Islamabad IESE(SCEE) NUST 2010. - 166 P. HB. - MS Environmental Engineering . Theses MS EE Subjects--Topical Terms: Environmental Engineering LC Class. No.: 628 HAS Dewey Class. No.: 628 HAS