Tuan Hashim, Tuan Siti Humaira, and Mohamad Amir Shah Ahmad. “ANALYSIS ERRORS IN NEWMAN MATHEMATICAL PROBLEM SOLVING YEAR 3 (69 - 84)”.
Jurnal Pendidikan Sains Dan Matematik Malaysia, vol. 6, no. 2, Apr. 2019, pp. 69-84,
https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/2168.