Question Level Analysis based on the Observed Taxonomy of Learning Outcome Structures in the 2013 Elementary School Mathematics Curriculum Book: Analisis Level Pertanyaan berdasarkan Taksonomi Struktur Hasil Belajar yang Diamati pada Buku Matematika Kurikulum 2013 Sekolah Dasar. ijemd. 2023;18(1):10.21070/ijemd.v21i.718. doi:10.21070/ijemd.v21i.718