Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) A. Garden and T. Umemoto and T. Amano and K. Tabata and T. Taguchi and M. Naniwada,A case study of the effectiveness of distance learning materials in higher education and suggestions for improvement,"IEEE SMC'99 Conference Proceedings. 1999 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No.99CH37028)",,IEEE,2003-01-20,2,,253-258,https://cir.nii.ac.jp/crid/1872835442433495808,https://doi.org/10.1109/icsmc.1999.825267