BABALLE, AUWALU, S. A. DALHATU, and BELLO. Y. IDI. 2020. “ESTIMATION OF ANNUAL EFFECTIVE DOSE DUE TO RADON CONCENTRATION IN GROUNDWATER IN BAUCHI NORTH, NIGERIA.”. BIMA JOURNAL OF SCIENCE AND TECHNOLOGY GOMBE 3 (02):166-73. https://journal-academia.com/Ojs/index.php/bimajst/article/view/157.