1. Beck, H.L., 1972. The physics of environmental radiation fields. Natural radiation environment II, CONF-720805 P2. In: Proceedings of the Second International Symposium on the Natural Radiation Environment.
2. Gross alpha and beta activities in tap waters in Eastern Black Sea region of Turkey;Damla;Chemosphere,2006
3. Environmental Status Report, 2004. Provincial Directorate of Environment and Forestry, Kastamonu, Turkey.
4. Radon levels in new and old buildings;Erees,1999
5. Assessment of dose rates around Manisa (Turkey);Erees;Radiat. Meas.,2006