1. United States Environmental Protection Agency, United States Department of Defense, United States Department of Energy, United States Department of Homeland Security, United States Nuclear Regulatory Commission, United States Food and Drug Administration, United States Geological Survey, National Institute of Standards and Technology, Multi-Agency Radiological Laboratory Analytical Protocols Manual (MARLAP), vol. II, section 14, 2004.
2. Determination of 90Sr in environment of district Swat, Pakistan
3. Separation and preconcentration of actinides from acidic media by extraction chromatography
4. Measurement of radionuclides using ion chromatography and on-line radiation detection
5. ISO, International Standard 18589-5:2009 Measurement of Radioactivity in the Environment – Soil – Part 5: Measurement of Strontium 90, 2009.