Psha، S. (1986). A PROBLEM IN INTERNATION PUBLIC RELATIONS AND A CONCEPTUAL MODEL FOR ITS SOLUTION. مجلة الدراسات الدبلوماسية، ع3 ، 18 - 35. مسترجع من http://search.mandumah.com/Record/660216
Psha، Syed. "A PROBLEM IN INTERNATION PUBLIC RELATIONS AND A CONCEPTUAL MODEL FOR ITS SOLUTION." مجلة الدراسات الدبلوماسية ع3 (1986): 18 - 35. مسترجع من http://search.mandumah.com/Record/660216