Practical Research: Planning and Design
by Jeanne Ellis Ormrod, Paul D. Leedy
ISBN 13: 9780139603600
Format: Paperback (318 pages) Publisher: Allyn & Bacon Published: 13 Jun 2000 Other Format: Paperback
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ISBN 13: 9780131365667
Format: Paperback (360 pages) Publisher: Pearson Education Published: 03 Apr 2009 Other Format: Paperback