Payne, Geoffrey K.
Leonard-Hill, 1977
Buku Teks
Leece, Sharon
Periplus, 2003
Buku Teks SO
Maunder, W.F.
Hong Kong University Press, 1969
Buku Teks
John R. Logan, editor
Blackwell Publishing, 2008
Buku Teks
Solomon, Arthur P.
MIT Press, 1974
Buku Teks