D. . Sinugbohan, L. Barayuga, R. Galigao, and J. M. Lombreno, “Instructional Material Utilization and Its Effect on Teacher Performance and Student Learning Outcomes”, Int. Multidiscip. J. Res. Innov. Sustain. Excell. , vol. 2, no. 7, pp. 405–412, Jul. 2025, doi: 10.5281/zenodo.15857737.