Leedy, Paul D.
Practical Research: planning and design by Paul D. Leedy - 6th ed. - New Delhi: Prentice Hall, 1997. - xvi, 304p.
0132414074 9780132414074
Research methodology
001.4 LEE
Practical Research: planning and design by Paul D. Leedy - 6th ed. - New Delhi: Prentice Hall, 1997. - xvi, 304p.
0132414074 9780132414074
Research methodology
001.4 LEE