Geoffrey, Leech N.
A linguistic guide to english poetry
Longmans, 1993
 Buku Teks SO
Thomas, Joe G.
Study guide management/ Joe G Thomas
Houghton Miffiln, 1990
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Low, Ona
Proficiency in english course
Edward Arnold, 1986
 Buku Teks SO
Stone, Linton
Cambridge proficiency English / Linton Stone
Macmillan, 1967
 Buku Teks SO
Moulton, William G.
A linguistic guide to language teaching
Modern Language Association of America, 1966
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