Hughes, Joan K., author
John Wiley & Sons, 1981
Buku Teks
Koffman, Elliot B., author
Addison-Wesley, 1981
Buku Teks
Litecky, Charles R., author
McGraw-Hill, 1987
Buku Teks
Armstrong, Russell M., author
John Wiley & Sons, 1973
Buku Teks
Stern, Nancy B., author
John Wiley & Sons, 1970
Buku Teks