Noer Azam Achsani, et al. “Asymmetric Volatility Spillover and Risk Contagion During the COVID-19 Outbreak: Empirical Investigation from the Indonesian and Global Stock Markets”. Advanced and Sustainable Technologies (ASET), vol. 4, no. 2, Dec. 2025, pp. 262-75, doi:10.58915/aset.v4i2.2695.