Charles, J.B., 1910-, author
Bezige Bij, 1968
Buku Teks
Cook, Chris, author
Macmillan, 1978
Buku Referensi
edited by Steven Muller
Macmillan, 1963
Buku Teks
edited by Randolph L. Braham
Alfred A. Knopf, 1966
Buku Teks
Sontag, Raymond James, author
Crofts, 1933.
Buku Teks