TY - BOOK AU - Creswell,John W. AU - Plano Clark,Vicki L. TI - Designing and conducting mixed methods research SN - 9781412975179 : AV - H62 .C69 PY - 2011/// CY - Los Angeles PB - Sage KW - Research KW - Evaluation KW - Social sciences KW - Research methodology N1 - Includes bibliographical references and index ER -