Piti
[también conocido como Pitti, Abisi, Bisi]Clasificación: Niger-Congo
·con amenaza de extinción
Clasificación: Niger-Congo
·con amenaza de extinción
Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/
Benue-Congo Comparative Wordlist . Kay Williamson (1973) · University of Ibadan, Nigeria: West African Linguistic Society