Sheth, Jagdish N., author
John Wiley & Sons, 1988
Buku Teks
Ayres, Frank, 1901-1994, author
McGraw-Hill, 1988
Buku Teks
Coddington, Earl A.
Tata Mcgraw-Hill, 1982
Buku Teks
Dowson, H.R., author
Academic Press, 1978
Buku Teks
Spiegel, Murray R., author
McGraw-Hill, 1971
Buku Teks