Triningham, J. Spencer
At The Clarendon Press, 1959
Buku Teks
Trimingham, J. Spencer
SCM Press , 1956
Buku Teks
Webster, J.B., author
Frederick A. Praeger, 1967
Buku Teks
Brooks, George E.
Westview Press, 1993
Buku Teks
edited by Michael M. Horowitz and Thomas M. Painter
Westview Press, 1986
Buku Teks