Berliyan, B., Aldy Purnomo, R. ., Cahyono, Y. ., Santoso, S. . and Abas, S. . (2025) “Analysis of Regional and Income Disparities in Nganjuk Regency: A Study Based on the Williamson Index and Gini Index”, Eduvest - Journal of Universal Studies, 5(3), pp. 3403–3415. doi: 10.59188/eduvest.v5i3.50901.