Hammer, Lawrence H.
South-Western, 1993
Buku Teks
Moriarity, Shane
John Wiley & Sons, 1991
Buku Teks
Carter, William K., 1951-
Salemba Empat, 2006
Buku Teks
Brock,Horace R
McGraw-Hill, 1989
Buku Teks
Hammer, Lawrence H.
South Western Publishing, 1994
Buku Teks