Mason, Alpheus Thomas,1899-1989, author
Prentice-Hall, 1964
Buku Teks
Beaney, William M., author
Prectice-Hall, Inc., 1960
Buku Teks
Lockhart, William B., author
West Publishing Company, s.a.
Buku Teks
Mason, Alpheus Thomas,1899-1989, author
Prentice-Hall, 1968
Buku Teks
Mason, Alpheus Thomas,1899-1989, author
Prentice-Hall, 1993
Buku Teks