Omar, A., and M. N. . Abdul Wahab. “Kajian Penggunaan Permainan Puzzle Dan Latihan Biofeedback Dalam Meningkatkan Prestasi Matematik Pelajar Sekolah Rendah: A Study on the Effectiveness of Puzzle Games and Biofeedback Training in Improving the Performance of Primary School Students ”. Sains Insani, vol. 7, no. 2, Nov. 2022, pp. 31-39, doi:10.33102/sainsinsani.vol7no2.463.