2Altman. 1983. Corporate Financial Distress. New York: Wiley (1983).
3Avramov, G. Jostova, & A. Philipov. 2007. Understanding Changes in Corporate Credit Spreads. Financial Analysts Journal, 63 (2): 90 - 105.
4Dbouk & Kryzanowski. 2010. Determinants of Credit Spread Changes. Studies in Economics and Finance, 27 (1:) 67 -82.
5Duffee. 1998. The Relation Between Treasury Yields and Corporate Bond Yield Spreads. The Journal of Finance, 53 (6) : 2225 - 2241.
6Dragon, Yongjun Tang & Hong Yah. 2005. Microeconmic Conditions, Firm characteristics, and Credit Spreads. Fina Serv Res, 29 (3): 177-210.
7Guha & Hiris. 2002. The Aggregate Credit Spread and The Business Cycle. International Review of Financial Analysis, 11 : 219 -227.
8Jonathan & H. Wright. 2011. Term Premiums and Inflation Uncertainty: Empirical Evidence from an International Panel Dataset. The American Economic Review, 101 (4) : 1514 - 1534.
9Longstaff & Schwartz. 1995. A Simple Approach to Valuing Risky Fixed and Floating Rate Debt. The Journal of Finance, 50 (3) : 789 -819.
10Merton R C. 1974. On the Pricing of Corporate Debt: the Risk Structure of Interest Rate. Journal of Finance, 29:449 -470.