Harahap, S. E.; Achsani, N. A.; Sasongko, H. Fenomena Black Swan: Dampak Covid-19 Terhadap Herding Behavior Pada Sembilan Sektor Di Pasar Modal Indonesia: Black Swan Phenomenon: The Impact of Covid-19 On Herding Behavior in Nine Sectors in The Indonesian Stock Market. jabm 2023, 9 (3), 998. https://doi.org/10.17358/jabm.9.3.998.