發送短信 : Card-Collection Mechanics in Educational Location-Based AR Games: Transforming Learning Goals to Virtual Rewards

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