Pr. CHERIF Adnane
University. El manar Tunisie

University. El manar Tunisie Prof,

Pr. KHEIDER Adel
University. Sousse Tunisié
Pr. DENAI Mouloud
ESGEE Oran Algérie

Dr Mouloud Denai graduated from

Pr. BOUASHASH Boualem
University. Queensland Australie

Boualem Boashash was an early

Pr. LAADJAL Khaled
University. Covilha Portugal