發送短信 : Consumer's perception of price when they shop online

 _    _     ______   ______     ______    ____    
| \  / ||  /_   _// |      \\  /_   _//  |  _ \\  
|  \/  ||   -| ||-  |  --  //   -| ||-   | |_| || 
| .  . ||   _| ||_  |  --  \\   _| ||_   | .  //  
|_|\/|_||  /_____// |______//  /_____//  |_|\_\\  
`-`  `-`   `-----`  `------`   `-----`   `-` --`