Ali, Jemila M., and Suhayla A. Ibrahim. “Measurement of Radium and Radon Exhalation Rate in Marble Samples Used in Al-Bayda City Market-Libya”. Al-Mukhtar Journal of Sciences, vol. 37, no. 3, Sept. 2022, pp. 218-25, doi:10.54172/mjsc.v37i3.626.