Kramers pocketwoordenboeken : Engels-Nederlands/Nederlands-Engels, eerste deel = Kramers pocket dictionaries : English-Dutch/Dutch-English, volume 1
Elsevier/Meulenhoff Educatief, 1987
 Buku Referensi
Coggle, Paul
Complete German, volume 2 = Teach yourself German
Kesaint Blanc, 2011
 Buku Teks
Current trends in linstics : volume VIII parts 2, linguistics in Oceania
edited by Thomas A. Sebeok
Mouton, 1971
 Buku Referensi
Current trends in linguistics : volume IX parts 2, linguistics in Western Europe
edited by Thomas A. Sebeok
Mouton, 1972
 Buku Referensi
Current trends in linguistics : volume X parts 2, linguistics in North America
edited by Thomas A. Sebeok
Mouton, 1973
 Buku Referensi