Todaro, Michael P., author
Addison-Wesley , 2000
Buku Teks
Todaro, Michael P., author
Longman, 1997
Buku Teks
Todaro, Michael P., author
Addison-Wesley , 2000
Buku Teks
Gill, Richard T. (Richard Thomas), 1927-2010, author
Prentice-Hall, 1963, 1967
Buku Teks
Todaro, Michael P., author
Erlangga, 2006
Buku Teks