کتاب های Leedy, Paul D.
![Practical research : planning and design](http://cdn.ketabkoo.com/covers/11/1118266-n.jpg)
Practical research : planning and design
Leedy, Paul D.; Ormrod, Jeanne Ellis, 2015![Practical Research: Planning And Design, 11th Ed.](http://cdn.ketabkoo.com/covers/12/1235916-n.jpg)
Practical Research: Planning And Design, 11th Ed.
Paul D. Leedy, Jeanne Ellis Ormrod, 2016![Practical Research: Planning and Design](http://cdn.ketabkoo.com/covers/12/1271266-n.jpg)
Practical Research: Planning and Design
Paul D. Leedy,Jeanne Ellis Ormrod![Practical research : planning and design](http://cdn.ketabkoo.com/covers/13/1351069-n.jpg)
Practical research : planning and design
Jeanne Ellis Ormrod; Paul D. Leedy, 2015![Practical Research: Planning and Design](http://cdn.ketabkoo.com/covers/14/1441251-n.jpg)
Practical Research: Planning and Design
Paul D. Leedy, Jeanne Ellis Ormrod, 2018![2 X 2 = Boo: A Set of Spooky Multiplication Stories](http://cdn.ketabkoo.com/covers/1/109796-n.jpg)