Gaya APA

SHAUGHNESSY, J, J. et al (2003). Research methods in psychology, sixth edition (SIXTH EDITION). New York: McGRAW-HILL HIGHER EDUCATION.

Gaya MLA

SHAUGHNESSY, John, J.. et al. "Research methods in psychology, sixth edition". SIXTH EDITION New York: McGRAW-HILL HIGHER EDUCATION, 2003. FAKULTAS PSIKOLOGI.