TY - BOOK AU - Ravitch,Sharon M. AU - Riggan,Matthew TI - Reason & rigor: how conceptual frameworks guide research SN - 9781483340401 PY - 2017///] CY - Los Angeles PB - SAGE KW - Social sciences KW - Research KW - Methodology KW - Qualitative research N1 - Includes bibliographical references : (pages 219-225) and index ER -