Lepsius, Richard
Standard alphabet for reducing unwritten languages and foreign graphic systems to a uniform orthography in European letters
Amsterdam John Benjamins B.V. 1981
 Buku Teks
Lammers, Joseph
Vollstandige rechtschreiblehre
Paderborn Ferdinand Schoning 1955
 Buku Teks
Honnor, Sylvia
Tricolore: pupil's book/Sylvia Honnor, Ron Holt, Heather Mascie-Taylor
Leeds E.J. Arnold 1985,
 Buku Teks
Italian phrase book
London English University Press 1958
 Buku Teks
Lubiner, Elaine Davis
Learning about languages: a comprehensive FLEX activity book/Elaine Davis Lubiner
Lincolnwood, Ill. National Textbook 1994,
 Buku Teks