Mussey, Henry R.
Economic principles and modern practice / by Henry R. Mussey and Elizabeth Donnan
Ginn and Company, 1947
 Buku Teks
Sanborn, Henry N.
What, how for whom the decisions of economic organization / Henry N. Sanborn
Cotter-Barnard Co., 1972
 Buku Teks
Leftwich, Richard H., author
An introduction to economic thinking / Richard H. Leftwich
Rienhard and Winston, 1969
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Kiekhofer, William H.
Economic principles, problems, and policies / William H. Kiekhofer
D. Appleton Century Company , 1946
 Buku Teks
Perthel, Dirk, author
Laws of development indicators of development and their effects on economic growth
Amsterdam University, 1981
 Buku Teks