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2. N. R. Kreig and J. G. Holt, “Bergey’s Manual of Systematic Bacteriology,” Vol. 1, Willians & Willkins Co., Baltimore, 1984.
3. R. E. Buchanan and N. E. Gibbons, “Bergey’s Manual of Determinative Bacteriology,” 8th Ed., Williams & Willkins Co., Baltimore, 1973.
4. D. E. Minnikin, M. Goodfellow and M. D. Collins, “Coryneform Bacteria,” ed. by I. J. Bousfield and A. G. Calleley, Academic Press, Inc., New York, 1978, pp. 85 ~ 160.