Holt, Charles A.
John Wiley & Sons, 1978
Buku Teks
Meiksin, Z.H.
Parker Publishing Company, INC, 1980
Buku Teks
Weyerer, Manfred
Prentice-Hall, 1992
Buku Teks
Paynter, Robert T.
Prentice Hall International, 1997
Buku Teks
Pease, Robert A.
Newnes, 1993
Buku Teks