Leigh, Denis
M.T.P. Press, 1977
Buku Referensi
general editor, H.R. Loyn
Thames and Hudson, 1991
Buku Referensi
Ronart, Stephan
Djembatan, 1964
Buku Referensi
edited by David A. Hamburg
Prentice-Hall, 1970
Buku Teks SO
Eaton, Merrill T.
Medical Examination, 1976
Buku Teks SO