Fardian, Ferdy, and Brady Rikumahu. “Financial Contagion Analysis on Asset Return of S&P 500 Index, Shanghai Index, and Hang Seng Index With Jakarta Composite Index for the Period 2017 – 2023”. Journal of Digital Business and Marketing 1, no. 1 (August 13, 2025): 33–46. Accessed October 10, 2025. https://goodwoodpub.com/index.php/jdbm/article/view/3316.