W. R. Alharbi, A. G. E. Abbady, and A. El-Taher, “Radon Concentrations Measurement for groundwater Using Active Detecting Method”, ASRJETS-Journal, vol. 14, no. 1, pp. 1–11, Aug. 2015, Accessed: Sep. 15, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/883