safer, Arnold E.
D.C. Heath and Company, 1979
Buku Teks
Krugman, Paul R., author
Pearson Education , 2014
Buku Teks
Krugman, Paul R., author
Pearson, 2009
Buku Teks
Krugman, Paul R., author
Addison-Wesley , 1997
Buku Teks
Krugman, Paul R., author
Harper Collins Publishers , 1991
Buku Teks