TUMANGGOR, A. H. THE VOLATILITY OF CRYPTOCURRENCY, DOLLAR AND COMPOSITE STOCK INDEX (JCI) FOR ESTIMATING VALUE AT RISK USING GARCH’S MODEL . Jurnal Ekonomi, [S. l.], v. 11, n. 02, p. 1309–1318, 2022. Disponível em: https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/522. Acesso em: 10 jun. 2026.