5Anna Watson, Philip Shrives, Claire Marston. 2002. Voluntary Disclosure of Accounting ratios in the UK, British Accounting Review, 34:289-313
6Edvisson, Leif, and Michael S. Malone. 1997. Intellectual Capital: Realizing Your Company's True Value by Finding Its Hidden Brainpower, New York: Harperbusiness.
7FASB, IASB. Summary Report of the Conceptual Framework Measurement Roundtables, Hong Kong, London, and Norwalk, January and February 2007
8Ferdinand A. Gul, Sidney Leung. 2004. Board leadership, outside director's expertise and voluntary corporate disclosures, Journal of Accounting and Public Policy, 23:351 - 379
9L. L. Eng, Y. T. Mak. 2003. Corporate gorernance and voluntary disclosure, Journal of Accounting and public Policy, 22: 325 - 345
10Lucy F. Ackert, Bryan K. Church, Mandira Roy Sankar. 2000. Voluntary disclosure under imperfect competition, International Journal of Industrial Organization, 18:81 ~ 105