Kartikasari G, Carolina A, Lutfia C. Dampak Pengumuman COVID-19 terhadap IHSG, Harga Saham, Abnormal Return dan Trading Volume Activity di Sektor Transportasi (Analisis Peristiwa di BEI 2019-2020). mssb [Internet]. 28Dec.2023 [cited 15May2024];4(2):82-5. Available from: http://jmassbi.fekon.unand.ac.id/index.php/mssb/article/view/93