Hill, Charles G., author
Wiley, 1977
Buku Teks
Coker, A. Kayode, author
Gulf Professional Publishing, 2001
Buku Teks
Coker, A. Kayode
Butterworth-Heinemann, 2001
Multimedia
Butt, John B., author
Marcell Dekker, Inc, 2000
Buku Teks
Smith, J. M., author
McGraw-Hill, 1981
Buku Teks