Kothari, C.R. Research methodology : methods [and] techniques / by C.R. Kothari. - Rev. 2nd ed. - New Delhi : New Age International Publishers, 2004. - xvi, 401p. : ill. Includes bibliographical references and index. ISBN: 8122415229 : Ksh. 800 Subjects--Topical Terms: Social sciences--research. LC Class. No.: H62.5 / .K68