The Springs of Sinhala Civilization - This is a treatise on the ancient system of irrigation that formed the core of Sinhala civilization during the Anuradhapura period of Sri Lanka by one of the foremost acknowledged masters of the subject.
Mahavamsa ( The Great Chronicle Of Ceylon) - The Mahavamsa or the Great Chronicle of Ceylon translated in to English by Wilhelm Geioger, Ph,D. assisted by Mabel Haynes Bode .Ph.D covering the history of Sri Lanka from the visit of the Thathagatha Buddha up to King Mahasena covering the period 3rd C.B.C up to 7th C.A.D.