Educational research : an introduction /
Gall, Meredith D.,
Educational research : an introduction / Meredith D. Gall, Joyce P. Gall, Walter R. Borg. - 8th ed. - Boston : Pearson/Allyn & Bacon, c2007. - xxxi, 672 p. : ill. ; 24 cm.
Includes bibliographical references and indexes.
0205488498 TZS 90478.54/=
Education
370.72 GAL
Educational research : an introduction / Meredith D. Gall, Joyce P. Gall, Walter R. Borg. - 8th ed. - Boston : Pearson/Allyn & Bacon, c2007. - xxxi, 672 p. : ill. ; 24 cm.
Includes bibliographical references and indexes.
0205488498 TZS 90478.54/=
Education
370.72 GAL