Spear, Percival
Oxford University Press, 1949
Buku Teks
Lamb, Beatrice Pitney
Frederick A. Praeger , 1968
Buku Teks
Philips, C.H., editor
Hutchinson University Library , 1949
Buku Teks
Wallbank, T. Walter
The American Library, 1958
Buku Teks
Agrawala, V. S.
University of Lucknow , 1953
Buku Teks