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Leach, D. P., Malvino, A. P., & Saha, G. (2006). Digital principles and applications (6th ed.). New Delhi: Tata McGraw-Hill.

Leach, Donald P., Albert Paul Malvino, and Goutam Saha. Digital Principles and Applications. 6th ed. New Delhi: Tata McGraw-Hill, 2006.

Leach, Donald P., Albert Paul Malvino, and Goutam Saha. Digital Principles and Applications. 6th ed. New Delhi: Tata McGraw-Hill, 2006.