Farida, Mayawi, et al. “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, vol. 8, no. 2, Feb. 2024, pp. 228-3, doi:10.33541/edumatsains.v8i2.5131.