Welland, Ray, author
Pitman, 1993
Buku Teks
Stern, Nancy B., author
Wiley, 1994
Buku Teks
Armstrong, Russell M., author
John Wiley & Sons, 1973
Buku Teks
Brown, Gary D., author
John Wiley & Sons, 1977
Buku Teks
McCraken, Daniel D., author
John Wiley & Sons, 1976
Buku Teks