Validity of an Ethnomathematics Integrated Mathematics E-Module for Phase F Students at SMAN 1 Koto XI Tarusan. TOFEDU [Internet]. 2026 Jul. 27 [cited 2026 Oct. 9];5(2):4304-15. Available from: https://journal.tofedu.or.id/index.php/journal/article/view/2119