1. Cox, D. R., &Hinckley, D. V. (1974).Theoretical statistics. New York: Chapman & Hall.
2. Lee, Y-S. (1971). Some results on the sampling distribution of the multiple correlation coefficient.Journal of the Royal Statistical Society: Series B,33, 117–130.
3. Lee, Y-S. (1972). Tables of the upper percentage points of the multiple correlation coefficient.Biometrika,59, 175–189.