V.S. Belevitskaya-Khalizeva ...[et al.]
Foreign Languages Publishing House, [date of publication not identified]
Buku Referensi
French, F. G.
Oxford University Press, 1947
Buku Teks
Tregidgo, Philip Sillince
Longman, 1979
Buku Teks
Willis, Dave
Cambridge University Press, 2003
Buku Teks
Makkink, H.J.
Nijgh and Van Ditmar, 1951
Buku Teks