Shannon, Lyle W.
Harper & Row , 1957
Buku Teks
edited by Bert F. Hoselitz
University of Chicago Press, 1952
Buku Teks
edited by Bert F. Hoselitz
University of Chicago Press, 1952
Buku Teks
Ormeling, Ferdinand Jan, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1955
UI - Disertasi (Membership)
Mason, Edward S., author
Fordham University Press, 1958
Buku Teks