Yong, J. N. C. . ., Ziaei, S. M. ., & R Szulczyk, K. . (2021). The Impact of Covid-19 Pandemic on Stock Market Return Volatility: Evidence from Malaysia and Singapore. Asian Economic and Financial Review, 11(3), 191–204. https://doi.org/10.18488/journal.aefr.2021.113.191.204