Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Timothy Dean Keeley,Kozai Group's Global Competency Inventory as a Predictor of Oral Performance in Foreign Languages,産業経営研究所報 = Journal of Industry and Management of Industrial Management Institute,02880059,福岡 : 九州産業大学産業経営研究所,2013,,45,13-34,https://cir.nii.ac.jp/crid/1520853833610431616,