"Cinnamon". Encyclopædia Britannica: Cinnamon.Encyclopædia Britannica. 2008. "(species Cinnamomum zeylanicum), bushy evergreen tree of the laurel family (Lauraceae) native to Bangladesh, Sri Lanka (Ceylon), the neighboring Malabar Coast of India, and Myanmar (Burma), and also cultivated in South America and the West Indies for the spice consisting of its dried inner bark. The bark is widely used as a spice due to its distinct odor."
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Keshavadas, Sant (1988). Ramayana at a Glance. Motilal Banarsidass. ISBN81-208-0545-3.
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Holt, John Clifford (2004). "Sri Lanka". In Buswell, Robert E., Jr.. Macmillan Encyclopedia of Buddhism. USA: Macmillan Reference USA. pp. 795–799. ISBN978-0-8160-5459-6.
R. B. Herath (2002). Sri Lankan Ethnic Crisis: Towards a Resolution. Trafford Publishing. p. 19. ISBN978-1-55369-793-0. "Parakramabahu 1 further extended the system to the highest resplendent peak of hydraulic civilization of the country's history."
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"The Constitution of Sri Lanka: Chapter II – Buddhism". Retrieved 17 April 2012. "The Republic of Sri Lanka shall give to Buddhism the foremost place and accordingly it shall be the duty of the State to protect and foster the Buddha Sasana, while assuring to all religions the rights granted by Articles 10 and 14(1)(e)."
Young, R. F. and Sēnānāyaka, J. E. B. (1998). The carpenter-heretic: a collection of Buddhist stories about Christianity from the 18th century Sri Lanka. Colombo: Karunaratne & Sons.. ISBN978-955-9098-42-3.
Gunawardena, Chandra (1997). "Problems of Illiteracy in a Literate Developing Society: Sri Lanka". International Review of Education43 (5/6): 595–609.doi:10.1023/A:1003010726149. JSTOR3445068.