Loja-Deleg, A. P., A. J. Dominguez, and E. J. Alcivar-Castro. “A Didactic Strategy for Enhancing Mental Mathematical Computation in Elementary School”. International Journal of Physics and Mathematics, vol. 7, no. 1, Nov. 2024, pp. 16-24, doi:10.21744/ijpm.v7n1.2339.