Firm Foundations Bible Study Series
NTM Bookstore or Ethnos 360 Bookstore
https://biblestudy.ethnos360.org
Firm Foundations is a Christian Bible teaching series that is being used to share the gospel in detail over a few months of time. It is in a few different languages. They have other materials for people who have no Biblical background.
Firm Foundations - Creation to Christ Books and Downloads in 13 Languages