Practical research :
Leedy, Paul D.
Practical research : planning and design / Paul D. Leedy. - 4th ed. - New York : London : Macmillan ; Collier Macmillan, c1989. - xi, 318 p. : ill. ; 28 cm.
distributer: al-Ahram
Includes bibliographies and index.
catalogued by: wessam
0023692421
88014990
Research--Methodology.
001.42 / LEE
Practical research : planning and design / Paul D. Leedy. - 4th ed. - New York : London : Macmillan ; Collier Macmillan, c1989. - xi, 318 p. : ill. ; 28 cm.
distributer: al-Ahram
Includes bibliographies and index.
catalogued by: wessam
0023692421
88014990
Research--Methodology.
001.42 / LEE