P. Raviraj and M.Y. Sanavullah
L.C. Nwanna
K.V. Marthandan
M.L. Benmalek , A. Benouis and A.Bali
Djamel Boubetra
I.U. Moffat and E.H. Etuk
B. Boucham , A. Chateauneuf and E.A. Adda Bedia
A. Kuitche , R. Ouambo and M. Edoun
J.A. Gbadeyan and M.S. Dada
Chinatu T. Nwaukwa and Charles Udosen
Abbes Mizane and Achour Louhi
S.E. Agarry , E. Betiku and B.O. Solomon
Ferreiro Garcia Ramon and Manuel Haro Casado
Nedjar Zohir , M. Chikhi , A. Khelfaoui and A.H. Meniai
Khalil Yaghi
M. Zeroual , P. Cerisier and M. Zereg
Oladipo Abiodun Tinuoye
Basil Okafor , Steve Odi-Owei and P.P. Jombo
K.D. Adedayo , J. S. Ojo and A.M. Arogunjo
Farah Bouakrif , Djamel Boukhetala and Fares Boudjema
Jamal M.V. Samani , Mahsa Vaez Tehrani and Majid Montaseri
A.O. Afolabi , O. Ekundayo and A.B. Idowu
R. Louahdi , V. Hays , R. Le Gall and S. Abdeslam
M.A. Ben Farah , A. Kachouri and M. Samet
H. Eylem Polat and Metin Olgun