Leftwich, Richard H.
Economics of social issues
Business Publications, 1974
Buku Teks
Sharp, Ansel M.
Economics of social issues
McGraw-Hill, 2000
Buku Teks
Sharp, Ansel M.
Economics of social issues
McGraw-Hill, 1998
Buku Teks
Sharp, Ansel M.
Economics of social issues
McGraw-Hill, 2002
Buku Teks
Leftwich, Richard H.
Economics of social issues
Business Publications, 1982
Buku Teks