“Study of Thorium and Uranium Isotopes Activity Concentration After Percolation or Agitation Leaching, in Mining Lixiviation Liquor Samples”. Brazilian Journal of Radiation Sciences 8, no. 1 (March 22, 2020). Accessed May 14, 2024. https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/933.