plz, i need this book :
fundamentals of digital signal processing,Ludeman
http://www.wiley.com.sci-hub.org/WileyCDA/WileyTitle/productCd-0471603635.html
fundamentals of digital signal processing,Ludeman
http://www.wiley.com.sci-hub.org/WileyCDA/WileyTitle/productCd-0471603635.html