K. N. Sari, A. R. Gumilang, M. R. Hamidi, A. E. Nasution, and G. F. Kuswanda, “Modified Genetic Algorithm in Isotropic Semivariogram Modeling: A Case Study of Groundwater Level in Kalimantan Peatland”, ijoict, vol. 11, no. 2, pp. 159–170, Jan. 2026.