Educational research :
Creswell, John W.
Educational research : planning, conducting, and evaluating quantitative and qualitative research / - 2nd ed. - Upper Saddle River, N.J. : Merrill, 2005. - xvi, 623 p. : ill. ; 27 cm.
Includes indexes.
9780131127906
Education
370.72 CRE
Educational research : planning, conducting, and evaluating quantitative and qualitative research / - 2nd ed. - Upper Saddle River, N.J. : Merrill, 2005. - xvi, 623 p. : ill. ; 27 cm.
Includes indexes.
9780131127906
Education
370.72 CRE