Babu, P. Ramesh. Digital signal processing / - 3rd ed. - Chennai : Scitech Publications (India) Pvt. Ltd., c2007. - 11.61 p. & I.4 p. : ill. ; 24 cm. Includes bibliographical references. ISBN: 8183710255 LC Class. No.: D4270 Dewey Class. No.: 621.3822 / BAB