Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sugimura Takeshi,Effects of verbal reinforcement combinations on learning in preschool children,The Japanese journal of psychology,00215236,The Japanese Psychological Association,1966,37,1,35-39,https://cir.nii.ac.jp/crid/1390282680056282496,https://doi.org/10.4992/jjpsy.37.35