Tashakkori, Abbas. Mixed methodology : combining qualitative and quantitative approaches / Abbas Tashakkori, Charles Teddlie. - Thousand Oaks : Sage Publications, c1998. - xi, 185 p. ; 23 cm. - (Applied social research methods ; v. 46) . Includes bibliographical references and index. ISBN: 0761900713 Subjects--Topical Terms: Social sciences Research Methodology. LC Class. No.: H62 / .T38 1998