Kuebler, Roy R., author
John Wiley & Sons, 1976
Buku Teks
Haber, Audrey, author
Addison-Wesley, 1973
Buku Teks
Wine, Lowell R.
Winthrop Publisher, 1976
Buku Teks
Blalock, Hubert M., author
McGraw-Hill , 1981
Buku Teks
Gregory, Derek, author
McGraw-Hill , 1978
Buku Teks