أرسل هذا في رسالة قصيرة: Ownership structure, diversification strategy and firm performance - An empirical study on China's listed companies

  ______     ___     ______     ______    _____   
 /_____//   / _ \\  |      \\  /_   _//  |__  //  
 `____ `   / //\ \\ |  --  //   -| ||-     / //   
 /___//   |  ___  |||  --  \\   _| ||_    / //__  
 `__ `    |_||  |_|||______//  /_____//  /_____|| 
 /_//     `-`   `-` `------`   `-----`   `-----`  
 `-`