Ariyanto, D.; Sofro, A.; Puspitasari, R. D. I.; Romadhonia, R. W.; Ombao, H. SPATIAL INTERPOLATION OF RAINFALL DATA USING COKRIGING AND RECURRENT NEURAL NETWORKS FOR HYDROLOGICAL APPLICATIONS IN SURABAYA, INDONESIA. BAREKENG: J. Math. & App. 2026, 20, 1185–1198.