V.C. Okereke , R.C. Wokocha and M.I. Godwin-Egein
Nkang M. Nkang , Henry M. Ndifon and Gabriel N. Odok
Ceasar H Mkandawire
Olatunji Abiodun Johnson
Adewumi , Matthew Olaniyi , Mohammed Sherifat Ayinde and Opeyemi Eyitayo
Adeniji and Olawale Taiwo
Shahriar M. Wahid and Mukand S. Babel
Sabo Elizabeth
Berna Kendirli and Belgin Cakmak
Daniel S. Ugwu
I.A Owokotomo and O.F Afuye
A.M. Kibe and C.N. Onyari
A.M. Kibe and D.K. Kamithi
M.G. Olujide
K.C. Obike , O.O. Ukoha and C.U. Nwajiuba
B.C. Okoye and C.E. Onyenweaku