Gaya APA
Paul D. Leedy, Jeanne Ellis Ormrod. (2021).
PRACTICAL RESEARCH PLANNING AND DESIGN .
United Kingdom.:
Pearson Education Limited,.
Gaya Chicago
Paul D. Leedy, Jeanne Ellis Ormrod.
PRACTICAL RESEARCH PLANNING AND DESIGN.
United Kingdom.:
Pearson Education Limited,,
2021.
Text.
Gaya MLA
Paul D. Leedy, Jeanne Ellis Ormrod.
PRACTICAL RESEARCH PLANNING AND DESIGN.
United Kingdom.:
Pearson Education Limited,,
2021.
Text.
Gaya Turabian
Paul D. Leedy, Jeanne Ellis Ormrod.
PRACTICAL RESEARCH PLANNING AND DESIGN.
United Kingdom.:
Pearson Education Limited,,
2021.
Print.