1.
Mandasari N, Rosalina E. Analisis Kesulitan Siswa dalam Menyelesaikan Soal Operasi Bilangan Bulat di Sekolah Dasar. basicedu [Internet]. 2021 Apr. 3 [cited 2024 Jul. 22];5(3):1139-48. Available from: https://jbasic.org/index.php/basicedu/article/view/831