Hudson, Richard
Word grammar
Basic Blackwell , 1984
 Buku Teks SO
Grammar and writing
Macmillan, 1981
 Buku Referensi
Laski, Harold J.
A Grammar of Politics
George Allen and Unwin, 1948
 Buku Teks SO
Laski, Harold J.
A Grammar of Politics
George Allen and Unwin, 1950
 Buku Teks SO
Laski, Harold J.
A grammar of politics
George Allen and Unwin, 1955
 Buku Teks