فهرس المقالات Zahra Houshmand Negabi المقاله 1 - Investigating the Relationship between Company Diversification and Systematic Risk by Studying the Cash flow of Companies Listed on the Tehran Stock Exchange Zahra Houshmand Negabi فاطمه پیرحیاتی Agricultural Marketing and Commercialization Journal , العدد 15 , السنة 8 , بهار 2024
