Freeman, Thomas, 1948-, author
Oxford University Press, 2016
Buku Teks
Goroll, Allan H.
J.B. Lippincott company, 1981
Buku Teks
Smillie, Wilson G.
Macmillan, 1963
Buku Teks
Leavel, Hugh Rodman, author
McGraw-Hill, 1958
Buku Teks
Davies, J.B. Meredith, author
Baillere Tindall, 1975
Buku Teks