Nastiti, W.A., Rezeki, Y. and Utami, R. 2026. Reaksi Abnormal Return Dan Trading Volume Activity Saham Indeks LQ45 Yang Terdaftar Di Bursa Efek Indonesia Sebelum Dan Sesudah Pelantikan Presiden 2024. RIGGS: Journal of Artificial Intelligence and Digital Business. 5, 1 (Feb. 2026), 1643–1658. DOI:https://doi.org/10.31004/riggs.v5i1.6391.