أرسل هذا في رسالة قصيرة: Assessment of the competitiveness of ports as bunkering hubs : a case study of Singapore and Shanghai

  ____      ______             _    _     _____   
 |  _ \\   /_   _//   ____    | || | ||  /  ___|| 
 | |_| ||   -| ||-   |    \\  | || | || | // __   
 | .  //    _| ||_   | [] ||  | \\_/ || | \\_\ || 
 |_|\_\\   /_____//  |  __//   \____//   \____//  
 `-` --`   `-----`   |_|`-`     `---`     `---`   
                     `-`