Du, D., & Ko, K. (2000). Theory of computational complexity. New York: Wiley.
Trích dẫn kiểu ChicagoDu, Dingzhu., và Ker-I Ko. Theory of Computational Complexity. New York: Wiley, 2000.
Deismireacht MLADu, Dingzhu., và Ker-I Ko. Theory of Computational Complexity. New York: Wiley, 2000.
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