Mader, Sylvia S.
McGraw-Hill, Higher Education, 2006
Buku Teks
Mader, Sylvia S.
McGraw-HIll, 2003
Buku Teks
Weinberg, Stanley L.
Allyn and Bacon, 1974
Buku Teks
Joseph Ciarrochi, Joseph P. Forgas, John D. Mayer.
Psychology Press, 2001
Buku Teks SO
Ostdiek, Vern J.
Thomson Brooks/Cole, 2008
Buku Teks SO