Jumiati, Lutviana Wahyu Febriyanti, and Irega Gelly Gera. 2024. “Analisis Kesulitan Mata Pelajaran Matematika SD Pada Materi Bangun Datar Sudut Pandang Jerome Brunner”. Journal of Global Research Education 1 (1): 75-83. https://doi.org/10.62194/92kd8t33.