Leamer, Edward E., author
John Wiley & Sons, 1978
Buku Teks
Grenander, Ulf, author
John Wiley & Sons, 1981
Buku Teks
Barnett, Vic, author
John Wiley & Sons, 1982
Buku Teks
Keeping, E.S., author
Van Nostrand Reinhold, 1962
Buku Teks
Freeman, Harold Adolph, author
Addison-Wesley, 1963
Buku Teks