Application of Functional Time Series Model in Forecasting Monthly Diurnal API Curves: A Comparison between Multi-Step Ahead and Iterative One-Step Ahead Approach. Mal. J. Fund. Appl. Sci. [Internet]. 2022 Feb. 28 [cited 2026 Sep. 5];18(1):124-37. Available from: https://mjfas.utm.my/index.php/mjfas/article/view/2435