Ravitch, Sharon M. Qualitative research: bridging the conceptual, theoretical, and methodological/ Sharon M. Ravitch and Nicole Mittenfelner Carl. - Los Angeles: Sage, c2016. - xxx, 567 pages; 23 cm. Includes bibliographical references and index. ISBN: 978-1-4833-5174-2 Subjects--Topical Terms: Qualitative research. Dewey Class. No.: DC 001.42 / R19