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A.N. Ikot
Theoretical Physics Group, Department of Physics, University of Port Harcourt,
Choba, PMB 5323, Port Harcourt
Nigeria
C.N. Isonguyo
2Theoretical Physics Group, Department of Physics, University of Uyo
Nigeria
J.D. Olisa
Department of Mathematics and Statistics, University of Port Harcourt,
Choba, PMB 5323, Port Harcourt
Nigeria
H.P. Obong
Theoretical Physics Group, Department of Physics, University of Port Harcourt,
Choba, PMB 5323, Port Harcourt
Nigeria