Nunan, David. Exploring second language classroom research : a comprehensive guide / David Nunan, Kathleen M. Bailey. - Australia : Cengage Learning, c2009. - vii, 496p. : ill. ; 23 cm. Includes bibliographical references and index. ISBN: 9789814272261 Subjects--Topical Terms: Research methods. Dewey Class. No.: C 001.42 N92 2009