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판 6개, 최신 판부터
Addison-wesley, 1999, ISBN 9780321005380
Addison Wesley Longman, 1999, ISBN 9780321005373
HarperCollins, 1994, ISBN 9780673522764
Scott, Foresman/Little, Brown Higher Education, 1990, ISBN 9780673398901
Little, Brown, 1984, ISBN 9780316095068
Pearson Education, Limited, ISBN 9780321216205