Bansal, S. K. Encyclopaedia of computer science & information technology : call centre / S. K. Bansal and Pankaj Sharma - New Delhi : A P H, c2010. - 279p. ; 23 cm. ISBN: 9788131307861 LCCN: Subjects--Topical Terms: Computer scienceEncyclopediasComputers LC Class. No.: QA76.15 / .B36 2010