“Efek Hari Libur Idul Fitri Terhadap Abnormal Return Saham Di Bursa Efek Indonesia”. Cakrawala: Jurnal Studi Islam 11, no. 1 (Juni 2, 2016): 34–50. Diakses September 30, 2026. https://coba.unimma.ac.id/cakrawala/article/view/99.