SIMANJUNTAK, Alberto. Use of ARIMA-GARCH Model to Estimating Value-at-Risk in Gudang Garam (GGRM) Stock. Operations Research: International Conference Series, [S. l.], v. 1, n. 2, p. 68–73, 2020. DOI: 10.47194/orics.v1i2.75. Disponível em: https://www.iorajournal.org/index.php/Orics/article/view/75. Acesso em: 14 jan. 2026.