Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHINDO TOSHIHIKO and MAGARA KEIICHI,Assisting Learners' Acquisition of a Practical Rule in Problem-Solving,The Japanese Journal of Educational Psychology,00215015,The Japanese Association of Educational Psychology,1999,47,4,462-470,https://cir.nii.ac.jp/crid/1390282680436856064,https://doi.org/10.5926/jjep1953.47.4_462