English this way English Language Services.
London Collier-Macmillan 1965,
 Buku Teks
Sambrook, G.A.
English language
Longmans, Green, 1947
 Buku Teks SO
Sambrook, G.A.
The English Language
Longmans Green & Co, 1947
 Buku Teks SO
Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
 Buku Teks SO
Management in English language teaching
Ron White...[et al.]
Cambridge University Press , 1991
 Buku Teks SO