Carter, Gwendolen M.
Harcourt, Brace & World, 1962
Buku Teks
edited by Randolph L. Braham
Alfred A. Knopf, 1966
Buku Teks SO
Scalapino, Robert A.
American Enterprise Institute for Public Police, 1972
Buku Teks SO
Myung, Hyun Cho
Seoul Computer Press, 1989
Buku Teks SO
by Samuel H. Beer ... [et al.]
Random House, 1965
Buku Teks SO