PARWATI, L. S.; NUGRAHANI, E. H. .; BUDIARTI, R. . Forecasting Stock Price Using Armax-Garchx Model During The Covid-19 Pandemic. Mathline : Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 8, n. 2, p. 489–502, 2023. DOI: 10.31943/mathline.v8i2.413. Disponível em: https://mathline.unwir.ac.id/index.php/Mathline/article/view/413. Acesso em: 10 mar. 2025.