Yin, R. K.
Applications of case study research - 2nd ed. - London Sage Publications 2003 - xviii, 173p. - Applied social research methods; v. 34 .
0-7619-2550-3
Applications of case study research - 2nd ed. - London Sage Publications 2003 - xviii, 173p. - Applied social research methods; v. 34 .
0-7619-2550-3