Shakir Aswood, Murtadha, and Murtadha Shakir Aswood. “Measurement of Uranium and Thorium Series in Fertilizer Samples in Iraq Using Gamma Spectrometry Technique”. Al-Qadisiyah Journal of Pure Science 20, no. 4 (August 1, 2018): 79 - 88. Accessed December 2, 2025. https://journalsc.qu.edu.iq/index.php/JOPS/article/view/866.