| |
|
|
|
Name : Mostafa Ali El-Khateb, Manl. E. Al-Hohaly and Hussien S. Hussien
|
|
|
|
Address : Dammam University, College of Arts and Science Nayriya, dept. of Mathes, Dammam University, Faculty of girls at El Dammam, dept. of Mathes. , Saudi Arabia, |
|
|
|
Email : ma_elkhateb@yahoo.com
|
|
|
|
Telephone : |
|
|
|
|
 |
|
