Leahey, Thomas Hardy, author
Prentice-Hall, 2001
Buku Teks
Hergenhahn, B.R., 1934-, author
Wadsworth, 2014
Buku Teks
Hergenhahn, B.R., 1934-, author
Wadsworth, 2014
Buku Teks
Wrightsman, Lawrence S., author
Brooks/Cole, 1991
Buku Teks
edited by Vergilius Ferm
Littlefield, Adams & Co., 1961
Buku Teks