1. Amnesty International. 2006 Undermining Freedom of Expression in China: The Role of Yahoo!, Microsoft, and Google. Amnesty International, London, UK
2. Austin J. L. 1991, ‘A Plea for Excuses’, in Peter A. French (ed.), The Spectrum of Responsibility. (St. Martin’s Press, New York)
3. Cohen A. 2004 Must Rights Impose Enforceable Positive Duties? Journal of Social Philosophy 35:264–276
4. De George R. 1993 Competing With Integrity in International Business. Oxford University Press, New York
5. Donaldson T. 1989 The Ethics of International Business. Oxford University Press, New York