edited by S.J. De Leat, A.H. Dani, J.L. Lorenzo and R.B. Nunoo
Routledge , 1994
Buku Referensi
Brinton, Crane, 1898-1968
Prentice-Hall, 1960
Buku Teks
Wallbank, T. Walter
Scott, Foresman, 1965
Buku Teks
Needham, Joseph
Cambridge University Press, 1956
Buku Teks
Reilly, Kevin
Harper and Row, c1980
Buku Teks