JAYANTI , R. D.; NISAK, N. M. Mathematics Pocketbook for Understanding Plane and Solid Shapes: Buku Saku Matematika untuk Memahami Bentuk Datar dan Ruang. Indonesian Journal of Education Methods Development, [S. l.], v. 20, n. 2, p. 10.21070/ijemd.v20i2.984, 2025. DOI: 10.21070/ijemd.v20i2.984. Disponível em: https://ijemd.umsida.ac.id/index.php/ijemd/article/view/984. Acesso em: 14 dec. 2025.