APRILLIA PUTRI PRADINAR; WIRYANTO; ENDAH BUDI RAHAJU. DEVELOPMENT OF ETHNOMATHEMATICS-BASED TEACHING MATERIALS USING KUE LUMPUR (MUD CAKE) ON FRACTION TOPICS TO IMPROVE NUMERACY AND SELF-EFFICACY OF FOURTH-GRADE STUDENTS. SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL, [S. l.], v. 15, n. 2, p. 1469–1480, 2026. DOI: 10.36526/sosioedukasi.v15i2.8157. Disponível em: https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/8157. Acesso em: 1 jun. 2026.