Drake, Henry Burgess
Oxford University Press, 1951
Buku Teks
Drake, Henry Burgess
Oxford University, 1957
Buku Teks
Suenobu, Mineo
Kobe University of Commerce, 1999
Buku Teks
Greenbaum, Sidney
Longman , 1990
Buku Teks
Morrison, L. A.
Central Press, 1956
Buku Teks