Gaik Tay, Kim, Tau Han Cheong, Sie Long Kek, and Rosmila Abdul-Kahar. 2016. “The Richardson’s Extrapolation Graphical User Interface Excel Spreadsheet Solver”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 8 (2):117-21. https://jtec.utem.edu.my/jtec/article/view/969.