Guerard, ALbert
Ann Arbor The University of Michigan 1959
Buku Teks
Cobban, Alfred, author
[publisher not identified], [date of publication no identified]
Buku Teks
Su, Kaiming, 1903-, author
New World Press, 1985
Buku Teks
Holborn, Hajo, 1902-1969, author
Alfreed A. Knopf, 1969
Buku Teks
Vickers, Adrian, author
Cambridge University Presss, 2007
Buku Teks