George, D., Briggs-Kamara, M.A. and Raymond, C.A. (2026) “Assessment of Excess Lifetime Cancer Risk from Indoor Radon Exposure in Obio-Akpor Local Government Area, Rivers State, Nigeria”., Nigerian Journal of Physics, 35(4), pp. 59–65. doi:10.62292/njp.v35i4.2026.610.