Bee Fang, Lau, and Lim Hooi Lian. “Kesan Penggunaan Strategi Metafora Dalam Pembelajaran Algebra Dalam Kalangan Pelajar Menengah Rendah: Effects of the Metaphor in Algebra Learning Among Students in Lower Secondary”.
Jurnal Pendidikan Sains Dan Matematik Malaysia, vol. 5, no. 2, Oct. 2015, pp. 51-70,
https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/2151.