1[3]La Porta, Rafael, Florencio Lopez- de- Silanes, Andrei Shleifer,and Robert W Vishny. Investor Protection and Corporate Governance. Journal of Financial Economics,2000,58.3 - 27
2[4]Modigliani, F and Miller, M. The cost of Capital, Corporation Finance, and the Theory of Investment. American Economies Review. 1958,48. 261 - 297
3[8]Brief Introduction to IR. http://www. ir- soc. org. uk
4[9]Investor Relationship Management: Improving Communication with Shareholders. http://www. sas. com