Abdullah, Nor Adibah binti. 2021. “The Effectivenes of KOBUNA in Primary pupils’ Rounding Skill: Keberkesanan Penggunaan KOBUNA Dalam Kemahiran Membundar Murid Sekolah Rendah”.
Jurnal Pendidikan Sains Dan Matematik Malaysia 11 (1): 30-38.
https://doi.org/10.37134/jpsmm.vol11.1.3.2021.