Practical research:
Leedy, Paul D. 2010
Practical research: Planning and design/ Paul D.Leedy and Jeanne E. Ormrod - 9th ed. - Boston; Pearson Educational International, 2010. - xvii, 336 p. :ill. Includes index.
9780131365667
Research-Methodology.
Q 180.55.M4L44 2010
Practical research: Planning and design/ Paul D.Leedy and Jeanne E. Ormrod - 9th ed. - Boston; Pearson Educational International, 2010. - xvii, 336 p. :ill. Includes index.
9780131365667
Research-Methodology.
Q 180.55.M4L44 2010