Kumalasari T, Danis A, Sinaga C. INTEGRATION OF PROBLEM-SOLVING AND ETHNOMATHEMATICS APPROACHES TO ENHANCE STUDENTS’ MATHEMATICAL REPRESENTATION ABILITY. buahhati [Internet]. 2025 Sep. 30 [cited 2026 Jun. 15];12(2):150-63. Available from: https://ejournal.bbg.ac.id/index.php/buahhati/article/view/3454