“Dampak Penerapan PSBB Covid-19 Dan Harga Saham LQ-45 Di Bursa Efek Indonesia (BEI)”. JEMMA (Journal of Economic, Management and Accounting) 4, no. 2 (August 7, 2021): 149–157. Accessed November 3, 2026. https://ojs.unanda.ac.id/jemma/article/view/736.