Humby, Clive Scoring points : how Tesco continues to win customer loyalty / Clive Humby, Terry Hunt and Tim Phillips - 2nd ed. - London : Kogan Page, 2007 - x, 294 p. : ill. ; 23 cm. Includes index ISBN: 9780749453381 (pbk.) RM99.90 0749453389 (pbk.) Subjects--Corporate Names: Tesco (Firm)--History--20th century Subjects--Topical Terms: Customer loyalty programs--Case studies