Javier, Julius Ceasar, Lyka Nicolle Cacao, Buen Juliah Dilla, Faith Geramos, and Jellian Pagara. 2026. “Relationship Between Prerequisite Mathematical Competencies and Trigonometric Learning Proficiency Among Grade 9 Students ”. International Journal of Research on Multidisciplinary Studies 1 (6):77–93. https://doi.org/10.5281/zenodo.21392924.