M.E. Okpilike Felix
J. Gbenga Adewale
J.F. Babalola
S.P. Ahmad, A.A. Khan and A. Ahmed
Musa Dalhatu and A.L. Ala
Appah Ebimobowei and John M. Sophia
P.H.G.J. De Silva, W.M.C.B. Weerasinghe and Thakshala Seresinhe
Dorothy Goredema, Vongai Nyawo-Shava and Percyslage Chigora
Isaac Addai