Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: SIL International (nke a na-akpọbu Summer Institute of Linguistics) bipụtara Ethnologue, bụ ọgbakọ ọrụ asụsụ Ndị Kraịst nke nwere ọfịs mba ụwa na Dallas, Texas.  Ajụjụ: Gịnị ka a na-akpọbu onye nkwusa a?
Ụlọ akwụkwọ Summer Institute of Linguistics