Wijesekera, S.2017-10-032017-10-032017Wijesekera, S.(2017). Importance of Cascade Systems (ancient irrigation systems) in Sustainable Development of Rural Communities in the Dry Zone of Sri Lanka (a review of the previous studies). ”Girihisa”, Department of Philosophy, University of Kelaniya,Sri Lanka.375-387.978-955-704-030-1http://repository.kln.ac.lk/handle/123456789/17710enImportance of Cascade Systems (ancient irrigation systems) in Sustainable Development of Rural Communities in the Dry Zone of Sri Lanka (a review of the previous studies).Book