Paa, A.D. and Solekhudin, I. 2025. Implementation of Dual Reciprocity Boundary Element Method to Solve The Mathematical Model of Steady Infiltration in Heterogeneous Soils Vertically. Journal of the Indonesian Mathematical Society. 31, 3 (Aug. 2025), 1964. DOI:https://doi.org/10.22342/jims.v31i3.1964.