Azzakhy, Muhammad Fadhil, and Agus Herta Sumarto. 2026. “Analysis of the Jakarta Islamic Index (JII) Using the Autoregressive Integrated Moving Average (ARIMA) Method During and After the COVID-19 Pandemic”. International Journal of Sustainable Applied Sciences 4 (10):1381-92. https://doi.org/10.59890/ijsas.v4i10.78.