Lee, M.H., J.H. Park, C.H. Lee, and K. Song. 2012. “Radiochemical Analysis of Pu, U and Sr Isotopes in Soil Samples With Anion Exchange, UTEVA, Strontium Resin”. Asian Journal of Chemistry 24 (7):3291-94. https://asianpubs.org/index.php/ajchem/article/view/9358.