- History of the Tonga Chiefs and Their People in the Monze District of Zambia (American University Studies, Series 21 : Regional Studies, Vol 12) by Santosh C. Saha, 1994-09
- Island Kingdom: Tonga Ancient & Modern by I. C. Campbell, 1992-01
- Journeys Beyond Gubuluwayo: To the Gaza, Tonga and Lozi - Letters of the Jesuits' Zambesi Mission, 1880-1883
- Missions in the Tonga and Feejee Islands, as described in the journals of Rev. Walter Lawry. Revised by Daniel P. Kidder. by Michigan Historical Reprint Series, 2006-03-31
- Tonga by Martin Daly, 1999-05-01
- Tradition Versus Democracy in the South Pacific: Fiji, Tonga and Western Samoa. (book reviews): An article from: The Australian Journal of Politics and History by Clive Moore, 1997-06-22
- Niuatoputapu: The Prehistory of a Polynesian Chiefdom (Themes Burke Memorial Washington State Museum, Monographs, 5) by Patrick Vinton Kirch, 1989-03
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