First Principles of Discrete - Hardcover, by Strum Robert D.; - Acceptable

First Principles of Discrete Systems and Digital Signal Processing

Signals and Systems - Continuous and Discrete

Signals and Systems: Continuous and Discrete (4th Edition) - Hardcover - GOOD

Discrete-Time Speech Signal Processing: Principles and Practice

First Principles of Discrete Systems and Digital Signal... - Strum, Robert D.

Digital Systems: Principles and Applicat..., Moss, Greg

First Principles of Discrete Systems and Digital Signal Processing