CHOONG, S. H.; FOO, K. K.; TANG, H. J.; LAI, M. L. Effectiveness of Abacus Hoop© Prototype on Primary School Students’ Mathematics Achievement. Environment-Behaviour Proceedings Journal, [S. l.], v. 10, n. SI43, p. 3–8, 2025. DOI: 10.21834/e-bpj.v10iSI43.7719. Disponível em: https://ebpj.e-iph.co.uk/index.php/EBProceedings/article/view/7719. Acesso em: 14 mar. 2026.