Reid, D. A. G.
London: Longman, 1966
Buku Teks
Spens, Michael
Academic Edition, 1995
Buku Teks
Seeley, Ivor H.
Macmillan, 1995
Buku Teks
McKay, W.B.
The English Language Book Society and Longman, 1971
Buku Teks
McKay, W.B.
The English Language Book Society and Longman, 1971
Buku Teks