JUNJUNAN, M.; SANTOSO, A. A.; JANNAH, B. S.; SAFDAR, M. Unraveling Market Shifts: A Study of Abnormal Returns, Trading Activity, and Volume Dynamics Around the COVID-19 Pandemic. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), v. 8, n. 3, p. 13280-13293, 14 nov. 2025.