Gaya APA

Wallnau, L, B., Gravetter, F, J. (2013). Statistics For The Behavioral Sciences (9th Ed.). Belmont, CA: Wadsworth Cengage Learning.

Gaya MLA

Wallnau, Larry, B.., Gravetter, Frederick, J. "Statistics For The Behavioral Sciences". 9th Ed. Belmont, CA: Wadsworth Cengage Learning, 2013. .