Text Book

1. A.V. Oppenheim, A.S. Wilsky and H. Nawab S, “Signals & Systems”, Prentice-Hall, 2005.
2. Lathi, B. P., and R. A. Green. Linear Systems and Signals. 2018.

Reference Books

1. S. Haykin and Barry Van Veen, “Signals & Systems”, John Wiley and Sons Inc., New Delhi, 2008.
2. Ashok Ambardar, “Introduction to Analog and Digital Signal Processing”, PWS Publishing Newyork, 2002.