1. B. Lewin, “Genes,” John Wiley and Sons, New York, 1983, pp. 489~491.
2. L. J. Kleinsmith, “The Regulation of Gene Expression,” ed. by G. S. Stein and L. J. Kleinsmith, Academic Press, New York, 1975, pp. 45 — 57.
3. K. M. Rose and S. T. Jacob, “Molecular Aspects of Cellular Regulation,” Vol. 3, ed. by S. Cohen, Elsevier Science Publishers, B. V., 1984, pp. 209~226.
4. J. R. Pringle and L. H. Hartwell, “The Molecular Biology of the Yeast Saccharomyces,” ed. by J. N. Strathem, E. W. Jones and J. R. Broach, Cold Spring Harbor Laboratory, 1981, pp. 97~142.