Holttum, R.E.
Authority , 1966
Buku Teks
Holttum, R.E.
Government Printing Office, 1966
Buku Teks
King, George, Sir, author
Mehra Offset Press, 1986
Buku Teks
Glenister, A.G.
Oxford University Press, 1971
Buku Referensi
Gimlette, John D., author
Oxford University Press, 1971
Buku Referensi