Maharani, Andika Ellena, Dea Azka, and Darlena Darlena. 2023. “Gold Price Fluctuation Forecasting Based on Newton and Lagrange Polynomial Interpolation”. Jurnal Varian 7 (1), 87 - 98. https://doi.org/https://doi.org/10.30812/varian.v7i1.3230.