Costa, H.H.2015-02-092015-02-091983Costa, H.H. (1983) Biological Studies of the Pearl Spot Etroplus suratensis (Pisces, Cichlidae) from three Different Habitats in Sri Lanka, International Review of Hydrobiology, 68: 565–580.http://onlinelibrary.wiley.com/doi/10.1002/iroh.19830680408/abstract;jsessionid=2A833B0F1A219531DF35DD69A85F6A35.f01t04http://repository.kln.ac.lk/handle/123456789/5231enArticle