I am experiencing an incredible response working with oral cultures in East Africa. The key has been introducing God's Word in a form (Talking Bible in their language) that a non-reader can listen to and discuss among themselves.
Listening groups are formed so that after work there are between 8-30 people listening to the Bible. Each Talking Bible is producing multiple stories of life change. Many non-believers are becoming Christians, and nominal believers are finding faith to leave sinful practices and come to church. It’s the most exciting ministry tool I have seen.
We have opportunities to help do recordings in East Africa, India, and Indonesia. I would be glad to help you get Talking Bibles for your missionary, indigenous ministry partner, or the short term missionaries from your church.