أرسل هذا في رسالة قصيرة: Enhancing user performance and engagement through gamification: Case study of aqua republica

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