Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKAZAKI Yoshihito and NAGAYAMA Tomoyuki,Psychological Effects of the Introduction of a Room for Sandplay into an Elementary School,Archives of Sandplay Therapy,0916-3662,The Japan Association of Sandplay Therapy,2019,31,3,67-73,https://cir.nii.ac.jp/crid/1390564238100122624,https://doi.org/10.11377/sandplay.31.3_67