Harrisson, Tom
Cornell University, 1969
Buku Teks SO
Hose, Charles, 1863-1929
Oxford University Press, 1993
Buku Teks
Wilson, Daniel
Cambridge University Press, 2015
eBooks
edited by Charles D.Bluestone, Sylvan E. StoolCharles D.Bluestone, Sylvan E.Stool, Margaret A.Kenna, Margaret A. Kenna
W.B. Saunders, 1996
Buku Teks
compiled by Yves Bonnefoy
University of Chicago Press, 1991
Buku Referensi