Ekambaranatha Ayyar M. A. T., . (1992). Manual of zoology vol II, Part I. : S.Viswanathan.
Ekambaranatha Ayyar M Ananathakrishnan T.N, . 1992. Manual of zoology vol II, Part I. : S.Viswanathan.
Ekambaranatha Ayyar M Ananathakrishnan T.N, . Manual of zoology vol II, Part I. : S.Viswanathan. 1992.