Franklin, Howard, author
John Wiley & Sons, 1982
Buku Teks
Harms, Edward, author
John Wiley & Sons, 1977
Buku Teks
Katzan, Harry, Jr., author
Van Nostrand Reinhold, 1977
Buku Teks
Wiedmann, Clark, author
Petrocelli Books, 1974
Buku Referensi
LePage, Wilbur R., author
Prentice-Hall, 1978
Buku Teks