Balldin, B.O.
African Medical and Research Foundation, 1975
Buku Teks
Christie, David
UNSW Press, 1997
Buku Teks
edited by Dawn E. Holmes
Springer-Verlag, 2012
eBooks
edited by Selma J. Mushkin, David W. Dunlop
Pergamon Press , 1980
Buku Teks
edited by Kenneth G.V. Smith
British Museum Press, 1973
Buku Teks