Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 久蔵 幸生 and 青山 眞二,Self-Determination using “refusal cards” in a Special Needs Class : Helping Special Needs Students to Express Refusal to Their Friends,北海道教育大学紀要. 教育科学編,1344-2554,北海道教育大学,2013-08,64,1,311-321,https://cir.nii.ac.jp/crid/1390294827850075776,https://doi.org/10.32150/00006150