Purcell, Victor, 1896-1965, author
Oxford University Press, 1951
Buku Teks
Steinberg, David J. (David Joel), author
Oxford University Press, 1971
Buku Teks
Coedes, George, author
University of Malaya Press, 1968
Buku Teks
John Funston
ISEAS, 2001
Buku Teks
University of Wisconsin Press, 1969
Buku Teks