1 환경부, "실내라돈가이드라인"
2 국가라돈정보센터, "www.radon.or.kr."
3 EPA, "www.epa.gov/radon/zonemap.html"
4 EPA, "www.epa.gov/radon/rrnc/directory.html"
5 EPA, "www.epa.gov/radon/manufact.html"
6 NRPB, "Radon Atlas"
7 EPA, "Consumer’s Guide to Radon Reduction (EPA402-K-10/002)"
8 EPA, "Assessment of radon risk in home (EPA 402-R-03-003)"