Ellis, Howard S.
Harvard University Press , 1937
Buku Teks
Walsh, Carl E.
MIT Press, 2010
Buku Teks
selected by a Committee of the American Economic Association
George Allen & Unwin, 1956
Buku Teks
Kurihara, Kenneth K.
Allen & Unwin, 1951
Buku Teks
Kurihara, Kenneth K.
W.W. Nortorn, 1950
Buku Teks