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Udowong, Effiong Udowong and Abiam, Patrick Obere 2025. Effect of Ethnomathematics-based Teaching Approach on Senior Secondary Students’ Achievement in Trigonometry. Journal of Current Research and Studies. 2, 4 (Aug. 2025), 39–44. DOI:https://doi.org/10.64321/jcr.v2i4.44.