Okoro, F. T. (2025) “Radiological assessment of 40K, 238U and 232Th from soil and groundwater in Port Harcourt Metropolis, Rivers State, Nigeria”, Researchers Journal of Science and Technology, 5(6), pp. 64–77. Available at: https://rejost.com.ng/index.php/home/article/view/216 (Accessed: 3 October 2025).