Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Inoue Masaru,"Understanding ""Inertial Mass"" as an Image with Entity (Forum on Practice of Pleasant Teaching)",Journal of the Physics Education Society of Japan,03856992,The Physics Education Society of Japan,1997,45,1,15-17,https://cir.nii.ac.jp/crid/1390282679492135424,https://doi.org/10.20653/pesj.45.1_15