Mohamed Abdelwahab Mohamed Badawi, Mariam, et al. “Does Realised Range Volatility Improve Multivariate Volatility Forecasting? Evidence from Bursa Malaysia Sectors: DOI: Https: doi.org 10.33093 Ijomfa.2026.7.2.12”. International Journal of Management, Finance and Accounting, vol. 7, no. 2, Aug. 2026, pp. 355-86, doi:10.33093/ijomfa.2026.7.2.12.