8Watts,R. L. , and J. L. Zimmerman. 1978. Towards a Positive Theory of the Determination of Accounting Standards, The Ac- counting Review, (January) : 112 - 138.
9Watts, R. L. , and J. L. Zimmerman. 1979. The Demand for the Supply of Accounting Theories : The Market for Excuses, The Accounting Review, (April) : 273 -305.
10Watts, R. L. , and J. L. Zimmerman. 1986. Positive Account- ing Theory, lnglewood Cliffs, N. J. : Prentice Hall Internation- al.