நூலகம்> தேசிய கல்வி நிறுவகம்
(1985). Population Of Sri Lanka. Tailand: Economic and Social Commision.
1985. Population Of Sri Lanka. Tailand: Economic and Social Commision.
Population Of Sri Lanka. Tailand: Economic and Social Commision. 1985.
Library Network, National Institute of Education (NIE) Maharagama