Komparasi Pergerakan Harga Nikel dengan Metode Double Exsponensial Smoothing, Trend Kuadratik, dan Trend Eksponensial. HORIZON: Indonesian Journal of Multidisciplinary, [S. l.], v. 4, n. 4, p. 5870–5881, 2026. DOI: 10.54373/hijm.v4i4.7257. Disponível em: https://ejournal.indo-intellectual.id/index.php/hijm/article/view/7257. Acesso em: 2 sep. 2026.