Educational research : quantitative, qualitative, and mixed approaches /
Johnson, Burke.
Educational research : quantitative, qualitative, and mixed approaches / By Burke Johnson, Larry B Christensen. - 4th ed. - Thousand Oaks, Calif. : SAGE Publications, ©2012, 2012. - 621p. ; 00 cm.
9781412978286
370.72 / JOH
Educational research : quantitative, qualitative, and mixed approaches / By Burke Johnson, Larry B Christensen. - 4th ed. - Thousand Oaks, Calif. : SAGE Publications, ©2012, 2012. - 621p. ; 00 cm.
9781412978286
370.72 / JOH