Simbolon, Lolyta Damora, Rani Farida Sinaga, Lena Rosdiana Pangaribuan, and Ike Theresia Panjaitan. 2025. “Poverty Line Forecasting Model in North Sumatera Province Using Double Exponential Smoothing Method”. Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton 11 (1):306-16. https://doi.org/10.35326/pencerah.v11i1.6644.