Trimono, T. .; Damaliana, A. T. .; Putri, I. A. . Modelling of Return of S&P 500 Using the Non Linear Generalized Autoregressive Conditional Heteroscedasticity (NGARCH) Model. Nusantara Sci. Tech. Proc. 2024, 2024 (41), 45-51. https://doi.org/10.11594/nstp.2024.4110.