^Who's Who in Asian and Australasian Politics 1991, p173
^Craig, Robert D. (2010). Historical Dictionary of Polynesia. Scarecrow Press.
^"Court Circular". The Times. London, England. 25 July 1986. p. 14. The Governor-General of Tuvalu (His Excellency Sir Tupua Leupena) had the honour of being received by The Queen when Her Majesty conferred upon him the honour of Knighthood and invested him with the Insignia of a Knight Grand Cross of the Most Distinguished Order of St Michael and St George.