Bruun, Ole
NIAS Press, 2011
Buku Teks
Loewe, Michael
Frederick A. Preager, 1965
Buku Teks
O`Malley, L.S.S. (Lewis Sydney Steward), 1874-1941
Macmillan, Cambridge, ENg. University Press, 1935
Buku Teks
Winzeler, Robert L.
Lanham Rowman & Littlefield, 2016
Buku Teks SO
Hughes, E.R.
Hutchinson's University Library, 1950
Buku Teks