Fisher, H.A.L.
Edward Arnold & Co., 1946
Buku Teks
Fisher, H.A.L.
Eyre and Spottiswoode , 1935
Buku Teks
Palmer, R.R. (Robert Roswell), 1909-2002, author
Princeton University Press, 1964
Buku Teks
Albrecht-Carrie, Rene
Methuen , 1970
Buku Teks
Croce, Benedetto
Allen & Unwin, 1953
Buku Teks