1 | University of M’sila ;B.P 166 ICHBELIA .M'sila 28000 Algeria. |
2 | Université 20 août 1955-Skikda, B.P.26 route El-Hadaiek Skikda-Algérie. |
3 | Faculty of Mechanical Engineering and Informatic-University of Miskolc, 3515 Miskolc-Hungary. |