MUSTAPA, Farah Hayati; ISMAIL, Mohd Tahir. Regime-Adaptive ARIMA–GARCH Framework under Structural Break: Evidence from the S&P 500 Index. Journal of Applied Science, Engineering, Technology, and Education, Takalar, Indonesia, v. 8, n. 2, p. 480–491, 2026. DOI: 10.35877/454RI.asci4894. Disponível em: https://ascijournal.eu/index.php/asci/article/view/4894. Acesso em: 7 sep. 2026.