tropicais sul-americanas (页面存档备份,存于互联网档案馆). Ph.D. dissertation, 巴西利亚大学. Mason, John Alden. The languages of South America. Steward, Julian (编). Handbook
lule. Arte y vocabulario de la lengua Lule y Tonocoté, ed. by Antonio Maccioni, xxi–lviii. Cagliari: Centro di Studi Filogici Sardi. Mason, John Alden. The
CDS/ADC Collection of Electronic Catalogues. 2002, 2237. Bibcode:2002yCat.2237....0D. Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey