Coldewey, John C.
Prentice-Hall, 2001
Buku Referensi
Daniels, May
Edinburgh : At The University Press, 1953
Buku Teks
Noble, James.
Oliver & Boyd,, 1982.
Buku Teks
Frank, Waldo
George Braziller, 1957
Buku Teks
Kar, Chintamoni
Alec Tiranti, 1950
Buku Teks