Tarigan, E. R., Saragih, A. H. and Siagian, S. (2026) “DEVELOPMENT OF PROBLEM BASED LEARNING-BASED E-MEDIA TO IMPROVE STUDENTS’ MATHEMATICS LEARNING OUTCOMES IN JUNIOR HIGH SCHOOL”, SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL, 15(3), pp. 110–117. doi: 10.36526/sosioedukasi.v15i3.9157.