A. A. Abro, M. Abubakar, T. A. Shahid, and U. Fatima, “Does Volatility Spillover among Sectors Varies from Normal to Turbulent Periods? Evidence from Pakistan Stock Exchange”, Pak. J. Humanit. Soc. Sci, vol. 12, no. 2, pp. 1174–1187, May 2024.