editors, Roy C. Macridis and Robert E. Ward
Prentice-Hall, 1963
Buku Teks
edited by W. Gordon East and O.H.K. Spate
Methuen, 1950
Buku Teks
Zein Septian Hidayat, author
Universitas Indonesia, 2013
UI - Skripsi Membership
Darling, Frank C.
G.K Hall & co., 1979
Buku Teks
Wriggins, W. Howard
Columbia University Press, 1969
Buku Teks