I.A. Akpabio, J.T. Ekanem, D.P. Okon, A.O. Angba and C.L. Aboh
Journal of Fisheries International 2 ( 4 ): 295 - 297 , 2007
Research Journal of Applied Sciences 2 ( 4 ): 453 - 457 , 2007
I.A. Akpabio, D.P. Okon, A.O. Angba and I.I. Akpabio
The Social Sciences 2 ( 3 ): 331 - 335 , 2007