Singh, Y K. Encyclopaedia of educational technology: Techniques of tests and evaluation / Y K Singh; T K Sharma; Brijesh Upadhya. - New Delhi : A P H Pub. Corp., 2008 - v,339 p. (v-2): ill. 23 cm. Includes bibliographical references. ISBN: 9788131303559 (set) Subjects--Topical Terms: Educational technology. Universal Decimal Class. No.: 371.33