Brumfiel, Charles Francis, 1914-
Addison-Wesley, 1961
Buku Teks SO
Archbold, J.W.
English Language Book Society, 1974
Buku Teks SO
Flanders, Harley
Academic Press, 1975
Buku Teks SO
Lang, Serge, 1927-2005
Addison-Wesley, 1974
Buku Teks SO
Brumfiel, Charles Francis, 1914-
Addison-Wesley, 1962
Buku Teks SO