Fuori, William M., author
Prentice-Hall, 1991
Buku Teks
Long, Larry E., author
Prentice-Hall, 1994
Buku Teks
Davis, Gordon B., author
McGraw-Hill, 1978
Buku Teks
Sanders, Donald H., author
McGraw-Hill, 1983
Buku Teks
Chapin, Ned, author
Van Nostrand Reinhold , 1971
Buku Teks