[1]
Mohammadzai, I.U., Irfan, M., Khan, N., Khan, M. and Usman, S. 2006. Physical Characteristics, Inorganic Constituents and Trace Metals Determination in the Street-Vended Samples of Heroin. Biological Sciences - PJSIR. 49, 4 (Aug. 2006), 251–255.