Mahmud MR, Turmudi T, Sopandi W, Rohimah SM, Pratiwi IM. Learning obstacles analysis of lowest common multiple and greatest common factor in primary school. J. Elemen [Internet]. 2023 Jul. 31 [cited 2024 Nov. 22];9(2):440-9. Available from: https://e-journal.hamzanwadi.ac.id/index.php/jel/article/view/12359