Creswell, John W. 

Educational research: planning, conducting, and evaluating quantitative and qualitative research / John W. Creswell - Upper Saddle River, N.J : Pearson, Merrill, 2005 - 623 p. ; 27 cm.

9780131127906


Education -- Research -- Methodology.
Method.
Research.

LB1028 / .C742 2005