Bach, George Leland, author
Economics an introduction to analysis and policy / George Leland Bach
Prentice-Hall, 1980
 Buku Teks
Bach, George Leland, author
Economics an introduction to analysis and policy
Prentice Hall of India, 1977
 Buku Teks
Baumol, William J., author
Economics : principles and policy
Harcourt, Brace Jovanovich College Publishers, 1985
 Buku Teks
Baumol, William J., author
Economics : principles and policy
Harcourt, Brace Jovanovich College Publishers, 1991
 Buku Teks
Hutchison, T. W. (Thomas W.), author
Positive economics and policy objectives
George Allen and Unwin, 1964
 Buku Teks