James, Elizebert, Nordin Mamat, and Nor Mashitah binti Mohd Radzi. “Implementation of ‘Spindle Box’ Activity in Improving the Understanding of Additional Operations for 4 Year Old Children: Pelaksanaan Aktiviti ‘Spindle Box’ Dalam Meningkatkan Kefahaman Operasi Tambah Terhadap Kanak-Kanak 4 Tahun”. Jurnal Pendidikan Bitara UPSI 15 (June 28, 2022): 117–133. Accessed November 22, 2024. https://ojs.upsi.edu.my/index.php/JPB/article/view/7173.