Solihin, I., Sugiarto, S., Ugut, G. and Hulu, E. 2022. LQ45 Stock Index Abnormal Return Reaction to the Covid-19 Pandemic: the Even Study Methodology. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 5, 1 (Mar. 2022), 342-355. DOI:https://doi.org/10.31538/iijse.v5i1.2051.