Zakaria, Nur Hanani, Nur Hamiza Adenan, Nor Suriya Abd Karim, and Adib Mashuri. “Prediction of Water Level Time Series Data for Dam at Selangor Using Chaotic Approach and Local Linear Approximation Method”. Journal of Science and Mathematics Letters 9 (February 18, 2021): 10-17. Accessed May 6, 2021. https://ejournal.upsi.edu.my/index.php/JSML/article/view/4803.