Effects of Seasonal Change on the Levels of Geogenic Radionuclides in Sand and Rocks from Tyaa River deposit in Kitui County. Int.J. Fundam. Phys. Sci [Internet]. 2019 Mar. 31 [cited 2026 Oct. 18];9(1):14-9. Available from: https://www.fundamentaljournals.com/index.php/ijfps/article/view/129