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

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發送短信 : Possible solutions to the problems commonly encountered by students at Hanoi University of Technology in pronouncing the English affricative consonants