“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”. 2023. Indonesian Journal of Education Methods Development 18 (1): 10.21070/ijemd.v21i.718. https://doi.org/10.21070/ijemd.v21i.718.