Epa, U.P.K.2016-06-232016-06-232015Epa, U.P.K. 2015. Lesson 30: Identification and culture of ornamental aquatic plants, In: Practical Manual for GCE A/L Biosystem Technology Teachers. Ministry of Education and University of Kelaniya, Sri Lanka. 219-222 pp.978-955-4563-50-6http://repository.kln.ac.lk/handle/123456789/13673enLearning Object