C. S. . Tamayo-Urbina and R. H. . Dalayap, “Electronic Learning System in Teaching Mathematics Enhancing Achievement among Students”, Int. J. Multidiscip. Appl. Bus. Edu. Res., vol. 6, no. 6, pp. 2928–2934, Jun. 2025, doi: 10.11594/ijmaber.06.06.23.