Gaya APA

Cohen, R, J. et al (2012). Psychological Testing and Assessment : An Introduction to Tests and Measurement 8'th Ed. (8). New York: McGraw-Hill.

Gaya MLA

Cohen, Ronald, Jay. et al. "Psychological Testing and Assessment : An Introduction to Tests and Measurement 8'th Ed.". 8 New York: McGraw-Hill, 2012. Text.