McLeod, Raymond, author
John Wiley & Sons, 1982
Buku Teks
Blackman, Sheldon, author
John Wiley & Sons, 1971
Buku Teks
Carver, Keith R., author
Wiley, 1983
Buku Teks
Carver, Keith R., author
John Wiley & Sons, 1983
Buku Teks
Carter, Norman H., author
Dickenson , [s.a.]
Buku Teks