Woolley, Leonard
Penguin Books , 1953
Buku Teks
Asimov, Isaac, author
Collier Books, 1962
Buku Teks
Park, Patricia, author
Kluwer Law International, 2012
Buku Teks
by Robert F. Scagel ... [et al.]
Wadsworth , 1965
Buku Teks
S. Husin Ali, author
Oxford University Press, 1975
Buku Teks