Umar, S., A. Asuku, A. Muhammad, M. Bashir, I. K. Suleiman, and K. Abdullahi. “Radon Levels and Risk Assessment Due to Its Ingestion and Inhalation from Groundwater of Lapai, North-Central Nigeria”. UMYU Scientifica, vol. 3, no. 1, Feb. 2024, pp. 80-87, doi:10.56919/usci.2431.009.