Mohamed, Suleiman Dahir, Mohd Tahir Ismail, and Majid Khan Bin Majahar Ali. “Historical Volatility Fluctuations of Bitcoin: Influenced by Real-World Event”. Journal of Quality Measurement and Analysis 21, no. 3 (September 23, 2025): 271–287. Accessed March 13, 2026. https://jqma.ukm.my/index.php/jqma/article/view/91.