CHE HASHIM, Iznida Hayu; CHE HASHIM, Izrahayu. My 4 in 1 Math Plate. Multidisciplinary Applied Research and Innovation, [S. l.], v. 2, n. 3, p. 260–264, 2021. Disponível em: https://penerbit.uthm.edu.my/periodicals/index.php/mari/article/view/5126. Acesso em: 9 apr. 2026.