Authors
Ubong W. Robert
Department of Physics, Akwa Ibom State University, Nigeria
Sunday E. Etuk
Department of Physics, University of Uyo, Uyo, Nigeria
Okechukwu E. Agbasi
Department of Physics, Michael Okpara University of Agriculture, Umudike, Nigeria
Ubong A. Iboh
Department of Physics, Akwa Ibom State University, Nigeria
Sunday S. Ekpo
Department of Physics, University of Uyo, Uyo, Nigeria