Farida, Mayawi, Hotmaulina Sihotang, and Candra Ditasona. “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, no. 2 (February 1, 2024): 228-238. Accessed November 22, 2024. http://ejournal.uki.ac.id/index.php/edumatsains/article/view/5131.