Davis, Gordon B.
McGraw-Hill, 1978
Buku Teks
Fuori, William M.
Prentice-Hall, 1991
Buku Teks
Fouri, William M.
Prentice-Hall, 1989
Buku Teks SO
Elsevier Scientific Publishing, 1971
Buku Referensi
O`Brien, James A., 1936-
Richard D. Iriwin, 1986
Buku Referensi