Embin Nasution, et al. “DEVELOPING LEARNING MATERIALS ORIENTED TO A REALISTIC MATHEMATICS EDUCATION APPROACH INTEGRATED WITH ETHNOMATHEMATICS TO ENHANCE STUDENTS’ MATHEMATICAL PROBLEM-SOLVING SKILLS”. Multidisciplinary Indonesian Center Journal (MICJO), vol. 2, no. 4, Nov. 2025, pp. 5261-8, doi:10.62567/micjo.v2i4.1478.