Simbolon, L. D., Sinaga, R. F., Pangaribuan, L. R., & Panjaitan, I. T. (2025). Poverty Line Forecasting Model in North Sumatera Province Using Double Exponential Smoothing Method. Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton, 11(1), 306–316. https://doi.org/10.35326/pencerah.v11i1.6644