Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Maruyama Masahiro,Corporate Internal Central and Corporate Governance from the Experience of Enron/Worldcom Cases,Journal of Japan Society for Safety Engineering,05704480,Japan Soceiety for Safety Engineering,2006,45,4,212-219,https://cir.nii.ac.jp/crid/1390282681220588416,https://doi.org/10.18943/safety.45.4_212