Mader, Sylvia S.
W.C. Brown , 1988
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
Kaplan, Abraham
Harper & Row, 1963
Buku Teks