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1
Boubel,Richard W.,, 539.92-B752대 | 東和技術 | 2000 539.92-B752대,
2
Boubel, Richard W, 517.44-B752f | Academic Press | 1994 517.44-B752f,
3
Boubel, Richard W., 539.92-B752f | Academic Press | 1994 539.92-B752f,