Campbell, John C., author
Harper & Row, 1967
Buku Teks
Pervan, Ralp
University Western Australia Press, 1978
Buku Teks
Broz-Tito, Josip
Pusaka, 1959
Buku Teks
Auty, Phyllis, author
Walker, 1965
Buku Teks
Organski, A.F.K., author
Alfred A. Knopf, 1969
Buku Teks