F. Memon, N. T. Narejo, A. G. M. Vasandani, K. P. Kunbhar, S. Jalbani, and P. Khan , Trans., “Determination of Lead in Human Calculi and Its Effects on Renal Function of Lead Occupational Workers”, Pak. J. Anal. Environ. Chem., vol. 17, no. 1, pp. 72 – 76, Jan. 2016, doi: 10.21743/pjaec/2016.06.011.