Digital Press, 1983
Buku Teks
McGraw-Hill, 1970
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
McKay, W.B.
The English Language Book Society and Longman, 1971
Buku Teks