Harahap, Erni Febrina, Cintia Darma Yenti, Natasya Natasya, and Akmal Yusuf. “Panel Data: Study Of Income Inequality In West Sumatra”. Gorontalo Development Review 8, no. 1 (November 5, 2024): 12 – 20. Accessed September 27, 2026. https://jurnal.unigo.ac.id/gdrev/article/view/3803.