Kahuluda, Evarist M., and Ismael N. Makundi. “Determination of Radon Gas and Respirable Ore Dust Concentrations in the Underground Merelani Tanzanite Mines”. Tanzania Journal of Science 40, no. 1 (November 30, 2014): 13–19. Accessed April 4, 2025. https://tjs.udsm.ac.tz/index.php/tjs/article/view/352.