Raine, Kathleen, 1908-2003
The British Council by Longmans, Green, 1965
Buku Teks
Ketton-Cremer, R.W.
Longmans, Green & Co., 1958
Buku Teks
Ward, A.C., author
Longman, 1955
Buku Teks
Crabbe, George
Longmans, Green & Co., 1956
Buku Teks
Tindal, William York
University of Minneapolis Press, 1961
Buku Teks