Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 今井 弘二 and 村山 泰啓 and 松下 幸市朗,Development and evaluation of the interactive digital material in geoscience,Educational Information Research,09126732,Japan Society of Educational Information,2017,33,1,33-40,https://cir.nii.ac.jp/crid/1390001205165046656,https://doi.org/10.20694/jjsei.33.1_33