Lee Abdullah, Mohd Faizal Nizam, et al. “CONSTRUCTION INSTRUMENT ASSESSMENT PRACTICE SECONDARY SCHOOL MATHEMATICS TEACHERS (1 - 14)”. Jurnal Pendidikan Sains Dan Matematik Malaysia, vol. 4, no. 1, Apr. 2019, pp. 1-14, https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/2122.