Mankiw, N. Gregory
Principles of economics
Harcout College, 1998
Buku Teks
Case, Karl E.
Principles of economics
Prentice-Hall, 2004
Buku Teks
Case, Karl E.
Principles of economics
Prentice-Hall, 1996
Buku Teks
Case, Karl E.
Principles of economics
Prentice-Hall, 2002
Buku Teks
Case, Karl E.
Principles of economics
Prentice-Hall, 1999
Buku Teks