Warner, D. Michael
Health Administration Press, 1978, 1984
Buku Teks
Eppen, Gary D.
Prentice Hall International, 1988
Buku Teks
Thomas N. Ingram...[et al.]
Harcourt College Publishers, 2001
Buku Teks
Radford, K.J.
Phoenix Press, 1981
Buku Teks
Anderson, David
South-Western College Publishing, 2000
Buku Teks