A Grammar of Obolo ìre ikpa usọ usem eyi ogwu usọ ikpa Nikolas Faraclas ogebe me acha 198x isa ikpa iwele ike usem Obolo okupbe, igọọk me ubọk iwọlọ-usem ebi usọ usem. Ikpa yi ore adasi ikpa eyi ogwu usọ usem ogebe ibak usem Obolo.

Îre Kay Williamson, ogwu nteme kan̄ me emen ikween̄-inu eyi ofia ikpa, oria ọmọ inu Obolo ibe inikween̄ usem Obolo mè iwọlọ ikpọ mè ige inu òfokek.

A Grammar of Obolo

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