Lestarai U. Analisis Learning Obstacle Pada Pembelajaran Nilai Tempat Siswa Kelas II SD: Learning Obstacle Analysis on Place Value Learning in Students Class II Elementary School. pedagogia [Internet]. 2019 Feb. 28 [cited 2025 Aug. 30];8(1):61-8. Available from: https://pedagogia.umsida.ac.id/index.php/pedagogia/article/view/1429