Friederich, Carl J
Cornell University Press, 1957
Buku Teks
Rumantyo Hardikartika
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1981
UI - Skripsi Membership
Granick, David
Columbia University Press, 1954
Buku Teks
edited by Ray Wood
CCH Australia, 1978
Buku Teks
Mishan, E. J.
Penguin Books, 1969
Buku Teks