Fisher, Robert Moore
N.Y. Harper , 1959
Buku Teks
edited by Leonard H. Goodman
Columbia University Press, 1966
Buku Teks
Poole, Kenyon E.
N.Y. Rinehart , 1956
Buku Teks
Grebler, Leo
National Boreau of Economic Research , 1960
Buku Teks
Kluwer Academic Publishers, 1989
Buku Teks