Kurniawan, M. H., N. A. Kundari, and N. E. Ekaningrum. “Analysis of Cs-137 Diffusion in Clay Soil and Kaolin from West Kalimantan With Groundwater Saturation ”. Journal La Lifesci, Vol. 6, no. 4, Nov. 2025, pp. 380-95, doi:10.37899/journallalifesci.v6i4.2660.