↑ “To Suvarnabhumi he [Moggaliputta] sent Sona and Uttara”; Mahānāma, The Mahāvaṃsa, or, The Great Chronicle of Ceylon, translated into English by Wilhelm Geiger, assisted by Mabel Haynes Bode, with an addendum by G.C. Mendis, London, Luzac & Co. for the Pali Text Society, 1964, Chapter XII, “The Converting of Different Countries”, p.86.
↑ Sussondi-Jātaka, Sankha-Jātaka, Mahājanaka-Jātaka, in Edward B. Cowell (ed.), The Jātaka: or Stories of the Buddha's Former Births, London, Cambridge University Press, 1897; reprinted Pali Text Society, dist. by Routledge & Kegan Paul, 1969, Vol. III, p.124; Vol. IV, p.10; Vol. VI, p.22
↑ J. S. Speyer, The Jatakamala or Garland of Birth-Stories of Aryasura, Sacred Books of the Buddhists, Vol. I, London, Henry Frowde, 1895; reprint: Delhi, Motilal Banarsidass, 1982, No.XIV, Supâragajâtaka, pp.453-462.
↑ The Siam Society: Miscellaneous Articles Written for the JSS by His Late Highness Prince Damrong. The Siam Society, Bangkok, B.E. 2505 (1962); Søren Ivarsson, Creating Laos: The Making of a Lao Space Between Indochina and Siam, 1860-1945, NIAS Press, 2008, pp.75-82.
↑ Manit Vallibhotama, "Muang U-Thong", Muang Boran Journal, Volume 14, no.1, January–March 1988, pp.29-44; Sisak Wanliphodom, Suwannaphum yu thi ni, Bangkok, 1998; Warunee Osatharom, Muang Suphan Through Changing Periods, Bangkok, Thammasat University Press, 2004; The Siam Society, Miscellaneous Articles Written for the JSS by His Late Highness Prince Damrong, The Siam Society, Bangkok, B.E. 2505 (1962); William J. Gedney, “A Possible Early Thai Route to the Sea”, Journal of the Siam Society, Volume 76, 1988, pp.12-16.
