Twelve Keys to an Effective Church: Strong, Healthy Congregations Living in the Grace of GodEbookTwelve Keys to an Effective Church: Strong, Healthy Congregations Living in the Grace of GodbyKennon L. CallahanRating: 0 out of 5 stars0 ratingsSave Twelve Keys to an Effective Church: Strong, Healthy Congregations Living in the Grace of God for later