Tay Kim Gaik, Lim Kian Boon, and Rosmila Abdul Kahar, NUMERICAL METHODS USING CASIO FX-570ES CALCULATOR. Penerbit UTHM, 2011. Accessed: Aug. 26, 2026. [Online]. Available: https://monograph.uthm.edu.my/index.php/penerbituthm/catalog/book/69