Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OMURI Keiko,Commentary I,The Japanese Journal of the historical studies of early childhood education and care,1881-5049,Society for the Historical Studies of Early Childhood Education and Care in Japan,2022,17,0,57-64,https://cir.nii.ac.jp/crid/1390295524492607872,https://doi.org/10.20658/youjikyoikushi.17.0_57