Case stury research :
Yin, Robert K.
Case stury research : design and methjods / Robert K. Yin. - 4th ed. - London : SAGE, 2009. - xiv, 219 p.
1412960991 :
CASE method.
Social science--Research--Methodology.
Case stury research : design and methjods / Robert K. Yin. - 4th ed. - London : SAGE, 2009. - xiv, 219 p.
1412960991 :
CASE method.
Social science--Research--Methodology.