Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
"天岩, 靜子",Conceptual Understanding of the Four Basic Operations of Arithmetic on Third to Fifth-graders,信州大学教育学部紀要,0373-7381,信州大学教育学部,2000-08-25,100,,137-148,https://cir.nii.ac.jp/crid/1050282813889768320,