Simamora MI, Wati S, ‘Aini F, Rodiah R. Case Study of Student Learning Difficulties in Mathematics Learning at MTs Muallimin Univa Medan. JKPM [Internet]. 2026 Jan. 30 [cited 2026 Feb. 23];5(1):211-8. Available from: https://ejurnal.univamedan.ac.id/index.php/jkpm/article/view/1245