Devi Fitriyati, Asyril A, Rizki NA. Problems Of Mathematics Learning On The Alef Platform In Class VII MTs Negeri 4 Kutai Kartanegara. escs [Internet]. 2022Dec.31 [cited 2024May5];2(2):214-23. Available from: https://jurnal.fkip.unmul.ac.id/index.php/escs/article/view/1558