Syed, Najaf Ali Shah Comparative Stduy For Removal Of Lead From Aqueous Solution By Pris tine and Alkali -Modified Biochar Syed Najaf Ali Shah - MUET Jamshoro : Environmental Engineering, November 2021, - XVI, 57 P. : ill, ; 30 cm. Includes references Indeex. Dewey Class. No.: / SYE