Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YAMADA Hisao,Aural Languages and Visual Languages : Revised Edition,Research bulletin of the National Center for Science Information System,09135022,National Institute of Informatics,1994-03-28,6,,199-247,https://cir.nii.ac.jp/crid/1573950401539974400,