English grammatical structure : a general syllabus for teachers / L.G. Alexander...[et al.]
Longman Group UK Limited , 1975
 Buku Teks SO
Holschuh, Louis W.
The functions of the English grammer/Louis W. Holscchuh
New York St. Martin's Press 1991,
 Buku Teks
Wiliting
The gerund/oleh Wiliting
Pekalongan Toko Buku Harapan 1981,
 Buku Teks
Lasnik, Howard
A Course in minimalist syntax : foundations and prospects
Blacwell , 2005
 Buku Teks SO
Honnor, Sylvia
Tricolore: pupil's book/Sylvia Honnor, Ron Holt, Heather Mascie-Taylor
Leeds E.J. Arnold 1985,
 Buku Teks