M. D. F. B. Lumban Gaol, B. S. Iryani, and E. . Lestariningsih, “Small Area Estimation of Extreme Poverty Using Zero-Inflated Binomial GLMM: A District-Level Case Study in North Sumatra 2024”, icdsos, vol. 2025, no. 1, pp. 1347–1361, Dec. 2025.