(1)
Yacob, R.; Rosli, R. Comparison of the Cognitive Level of the Topic Of Mixed Operations in Mathematics Year 5 Primary Schools in Malaysia and Brunei: Perbandingan Aras Kognitif Topik Operasi Bercampur Matematik Tahun 5 Sekolah Rendah Malaysia Dan Brunei. JPSMM 2023, 13, 79-98.