Gray, Charles A.
E.P. Dutton & Co. Inc., 1965
Buku Teks
Gray, William S.
Prentiee-Hall, 1996
Buku Teks
Wilde, Oscar, author
Harmondsworth, 1952
Buku Teks
Richard L. Drake ... [and others]
Elsevier, 2015
Buku Teks
Drake, Richard L., author
Churchill Livingstone Elsevier, 2015
Buku Teks