Hoffman, W. Michael
McGraw-Hill, 1995
Buku Teks
Singh, Kulwant, 1961-
Cengage Learning, 2012
Buku Teks
Griffin, Paul A.
Prentice-Hall, 1991
Buku Teks
Velasquez, Manuel G.
Pearson, 2006
Buku Teks
Johnson, Rossall James, 1917-
LPEM - FEUI, 1961
Buku Teks