Tabassum Nasir, Nisar Ahmad. The Effect of Grain Size on Radon Exhalation Rate in Soil Samples of Dera Ismail Khan in Pakistan. J. Basic Appl. Sci. [Internet]. 2021 Jul. 2 [cited 2025 Jan. 22];8(2):430-6. Available from: http://set-publisher.com/index.php/jbas/article/view/812