Tonga is spoken in Tonga and other Pacific Islands.
For more information, see SIL Ethnologue code ton.
Tongan Bibles to purchase:
From American Bible Society:
The "JESUS" Film, based on the Gospel of Luke, has been translated into Tongan. You can order a copy from www.jesusfilmstore.org. Or order by phone from Campus Crusade at 1-800-432-1997.
The Four Spiritual Laws gospel tract has been translated into Tongan. Download a free pdf or purchase a CD to Print Your Own Gospel Tracts from Campus Crusade.