Yong, Jordan Ngu Chuan, Sayyed Mahdi Ziaei, and Kenneth R Szulczyk. 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.