Graham, Stuart
The french verb book
Cambridge University Press , 1994
Buku Teks SO
Katamba, Francis
Morphology
Macmillan, 1994
Buku Teks
Graham
French
Buku Teks
Henschel, Astrid
German verb drills
Passport Books, 1994
Buku Teks SO
Haider, Hubert
Verb second phenomena in Germanic
Foris Publications, 1986
Buku Teks