Todaro, Michael P., author
Ghalia Indonesia, 1983
Buku Teks
Todaro, Michael P., author
Gelora Aksara Pratama, 1993
Buku Teks
Handelman, Howard, author
Pearson/Prentice Hall, 2006
Buku Teks
Gant, George F., author
University of Wisconsin Press, 1979
Buku Teks
Melkote, Srinivas
Newbury Park, Calif. : Sage Publications,, 1991
Buku Teks