Taylor, F. Sherwood, author
Frederick A. Praeger, , 1955
Buku Teks
edited by R.C. Olby, G.N. Cantor, J.R.R. Christie and M.J.S. Hodge
Routledge, 1990
Buku Referensi
Mason, Stephen S., author
Henry Schuman, 1953
Buku Teks
Dampier, William Cecil
Meridian Book, 1957
Buku Teks
Shaharir Mohamad Zain, author
Universiti Kebangsaan Malaysia, 2000
Buku Teks