Gelles, Richard J., author
McGraw-Hill College , 1999
Buku Teks
Bassis, Michael S., author
McGraw-Hill, 1991
Buku Teks
Roucek, Joseph S., author
Littlefield, Adam, 1963
Buku Teks
Roucek, Joseph S., author
Bina Aksara, 1984
Buku Teks
Wallace, Walter L.
Aldine publishing, 1970
Buku Teks