BALLESTEROS, M. A. J. “Integrating Ethnomathematics in Secondary Mathematics Curriculum: Approaches, Practices, and Teacher Experiences”. Divine Word International Journal of Management and Humanities (DWIJMH) (ISSN: 2980-4817), vol. 5, no. 3, Sept. 2026, pp. 4024-4, doi:10.62025/dwijmh.v5i3.365.