References
- Falk , E. L. 1979 . Citizen Participation in Public Administration , University of Georgia, Dept. of Public Administration . unpublished Ph.D. thesis
- Graybill , F. A. 1976 . Theory and Application of the Linear Model , Belmont , Calif. : Duxbury Press .
- Rao , C. R. 1965 . Linear Statistical Inference and Its Applications , New York : John Wiley .