Gaya APA

Cohen, R, J. (2018). Psychological Testing and Assessment : An Introduction to Tests and Measurement 9'th Ed. (9). New York: McGraw-Hill Education.

Gaya MLA

Cohen, Ronald, Jay. "Psychological Testing and Assessment : An Introduction to Tests and Measurement 9'th Ed.". 9 New York: McGraw-Hill Education, 2018. Text.