Essa, 1997. Egypt. J. Aqu. Biol. Fish., 1 (2): 19-34 Document reference Essa, M. A., 1997. Utilization of some aquatic plants in diets of Nile tilapia, Oreochromis niloticus, fingerlings. Egypt. J. Aqu. Biol. Fish., 1 (2): 19-34Citation key Essa, 1997Datasheets Duckweed
