Farida, M., Sihotang, H. and Ditasona, C. (2024) “ANALYSIS OF STUDENTS’ DIFFICULTIES IN SOLVING ALGEBRAIC OPERATION PROBLEMS BASED ON PROBLEM-SOLVING SKILLS IN GRADE VII AT SMP NEGERI 8 TAMBUN SELATAN”, EduMatSains : Jurnal Pendidikan, Matematika dan Sains, 8(2), pp. 228-238. doi: 10.33541/edumatsains.v8i2.5131.