Henle, Paul
Sprache, denken, kultur herausgegeben / von Paul Henle
Suhrkamp, 1975
 Buku Teks
Kosakata dasar Swadesh di Kabupaten Belu, Ngada, Sumba Barat, Sumba Timur, dan Timor Tengah Utara / Tim penyusun, Buha Aritonang...[et.al]
Departemen Pendidikan dan Kebudayaan, 2002
 Buku Teks
Pauwels, Anne
Language maintenance and shift
NY Cambridge University Press, 2016
 Buku Teks
Stewart, Mark Alan
GRE CAT Answers to the Real Essay Questions, 2nd edition (Arco GRE Answers to the Real Essay Questions)
Thomson, 2003
 Buku Teks
Barr, Donald F.
Languages of Central Sulawesi checklist, preliminary classification, language maps, wordlists/ Donald F. Barr, Sharon G. Barr
Hasanuddin University, 1979
 Buku Teks