Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OTSUKA Kazumi,A Study on legislation of Journalists' Privilege to refuse to testify : Regarding the US Federal Shield Bills,JOURNAL OF MASS COMMUNICATION STUDIES,13411306,Japan Society for Studies in Journalism and Mass Communication,2010,77,0,167-186,https://cir.nii.ac.jp/crid/1390282681076416768,https://doi.org/10.24460/mscom.77.0_167