Salah Abdulsatar, Hazim, et al. “DESIGN AND SIMULATION OF THREE STAGES DECIMATION FILTER FOR WCDMA USING FDA TOOL IN MATLAB”. Journal of Engineering and Sustainable Development, vol. 20, no. 3, May 2016, pp. 94-102, https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/643.