Pervin, S., S. Yeasmin, J. Ferdous, and A. Begum. “RADON CONCENTRATION IN GROUND WATER OF DHAKA CITY, BANGLADESH”. International Journal of Engineering Technologies and Management Research, vol. 5, no. 11, Nov. 2018, pp. 61-70, doi:10.29121/ijetmr.v5.i11.2018.318.