أرسل هذا في رسالة قصيرة: Breakthrough principals : a step-by-step guide to building stronger schools

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