Berner, Robert A., author
McGraw-Hill, 1971
Buku Teks
Fritz, William J.
John Wiley & Sons, 1988
Buku Referensi
Andi Ruswandi, author
Universitas Indonesia, 2001
UI - Tesis Membership
Hutabarat, Sanggam, author
Universitas Indonesia, 2006
UI - Tesis Membership
Blatt, Harvey, author
W.H. Freeman, 1982
Buku Teks