Maryam Zafar Detection Of Microbial Pathogens In Drinking Water Biofilm Using PCR Maryam Zafar - Islamabad IESE (SCEE) NUST 2016. - 68 p. HB. - MS Environmental Science . Thesis MS ES Subjects--Topical Terms: Environmental Science LC Class. No.: 363.7 ZAF Dewey Class. No.: 363.7 ZAF