Text ( visual ) : unmediated Handbook of research on student engagement / Sandra L. Christenson, Amy L. Reschly, Cathy Wylie, editors. -- : softcover. -- New York : Springer , 2013, c2012. -- xxvii, 840 p. : ill. ; 26 cm. -- Includes bibliographical references and index. -- ISBN 9781461467915 ; (BC1715942X) ; https://ci.nii.ac.jp/ncid/BC1715942X Author Heading(s): Christenson, Sandra ; Reschly, Amy L. ; Wylie, Cathy. -- Classification(s): DC23 : 370.154. -- Subject Heading(s): LCSH : Motivation in education