Ross, Austin, author
John Wiley & Sons, 1984
Buku Teks
edited by Charles D. Schewe
Haworth Press, 1991
Buku Teks
Joan Robinson, editor
W.B. Saunders , 2001
Buku Teks
Colyar, Margaret R.
F.A. Davis ,
Buku Teks
Shortell, Stephen Michael, 1944-, author
Delmar, 1994
Buku Teks