Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TANI Kenji and SATO Toshiki and OHNISHI Koji and OKAMOTO Kohei and OKUNUKI Kei-ichi,Development of an educational GIS and its use on a trial basis in junior high school classes,Theory and Applications of GIS,13405381,Geographic Information Systems Association,2002,10,2,69-77,https://cir.nii.ac.jp/crid/1390282679452205312,https://doi.org/10.5638/thagis.10.2_69