Terry, George Robert, author
Prentice-Hall, 1956
Buku Teks
Holden, Paul E., author
Prentice-Hall, 1955
Buku Teks
Terry, George Robert, author
Prentice-Hall, 1957
Buku Teks
McNair, Malcolm P., author
McGraw-Hill, 1949
Buku Teks
Brown, Milton P.
New York, N.Y. , McGraw-Hill
Buku Teks