Stommel, Manfred
Lippincott Williams & Wilkins, 2004
Buku Teks SO
Cesta, Toni G.
Mosby , 2002
Buku Teks
Gillis, Angela
F.A. Davis , 2002
Buku Teks
edited by Robert J. Schwartz and Clifford W. Smith
Institute of Finance, 1993
Buku Teks
Broyles, Bonita E.
Delmar, 2009
Buku Teks SO